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给麦田短消息了 。。。

[quote]原帖由 [i]穗棉布族[/i] 于 2008-5-17 00:23 发表 [url=http://www.xiaoma.com/bbs/redirect.php?goto=findpost&pid=150216&ptid=11866][img]http://www.xiaoma.com/bbs/images/common/back.gif[/img][/url]$n:I{2_t]$i4v5]
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NEC是PLUSE的马甲？ [/quote]"{ GM!P&j R&W'_2V

[&DC'W \\
G&xEiI-|HO)PL 不是 呵呵 俺没马甲。。。

#35 517

[b]marine[/b] biology  [news:/s/00:04.2-00:08.6]
z2r,q,}2A#vW 0c,^7tb1Kg$n
[color=red][b]to us[/b][/color], the environment which fish were often seems cold and dark and mysterious. [news:/s/00:08.6-00:15.8] G,@q R H
there are advantage of living in water. [news:/s/00:15.8-00:18.5]
'?0n d!pI%P}T and these played an improtant role in making fish what they are.  [news:/s/00:18.3-00:22.5] Oz+F*gm0Q`uj
one is that water isn't [b][color=red]subject[/color][/b] to [b][color=red]sudden [/color][/b]temperature changes. [news:/s/00:22.5-00:26.3]
'E'bOb1[.N3FC therefore makes an excellent [b]habitat[/b] for cold blooded aimal. [news:/s/00:26.1-00:30.5]
E0LU^YI!]E+{ o| and another advantage is the water's [b]ability[/b] to easily support body [b]weight[/b]. [news:/s/00:30.5-00:35.4]
g1M#l q @6k&wc
[b][u]Protoplasm[/u][/b] has [b][color=red]approximately[/color][/b]  the  same  density as water. :QQ"syV["Wi0yc.F
so a fish in water is almost weight less.
O2w
ov/fpC this weightless[u][color=red] in turn[/color][/u] means 2 things`F)A:tTH
1  a fish can get along with a light weight in simple bone struct+r8C"Gwx
2  [b]limitation[/b] to fish size practically removed.7d~
ya0k:OPl H#t
[news:/s/00:39.2-01:00.5]
:nKy/W5M+?o,`k yet is one basic diffcuty to living in wattter.  the fact that it's [b]incompressible[/b]   [news:/s/00:54.0-01:00.5]
&m5kx&p4d2o'K#hm I!G;c| for fish to move through water, it must actually [b][color=darkred]shove[/color][/b] its side.  [news:/s/01:00.5-01:05.8]
?q/`"h'g most can do it by [b][u]wiggeling[/u][/b] [b]back and forth  snack like[/b] [b]motion[/b]    [news:/s/01:05.6-01:09.4]
,T`(YhKvV3B the fish push water aside by [b]forward[/b] motion of its head, and with the [b]curve[/b] of its body and reflexible tail.9R9m[&[@0d
[news:/s/01:09.4-01:16.8]
7`.J x&e
KN,Y1xp'R4s next , the water flows back along  the fish's [b]narrowing[/b] side,[b] closing in the tail[/b],help the fish [b]propel[/b] it forward. [news:/s/01:16.8-01:25.4]
-C'F3W2D)H9U%Mt-mi the fact the water is incompressible has [b]litterly[/b] [b]shape[/b] the development of fish. [news:/s/01:25.4-01:31.0] 8^s8XG
go} z
a [b]flat and angular[/b] shape can be moved through water only with diff. [news:/s/01:30.8-01:35.5]
&p2\5P2N3Wz5~ for this reason ,fish have a basic shape that is beautifully [b]adapted[/b] to deal with this [b]peculiarity[/b]  [news:/s/01:35.5-01:43.9]

#36

5 19 'mAp_*De

u
ZDm;R)h dJ biology qf;Y6W&hzv
Human [u]populations[/u] near the [b]equator[/b] have [b]evolved[/b] dark skin over many generations because of
G9L!TeNd!C\)L exposure to the [b]fierce rays[/b] of the Sun. [news:/s/00:08.1-00:17.3] 2r;P/uB.EN9B

4M,dvDG;T(j3EM . A [b]similar phenomenon[/b] has also occurred in other parts of the animal kingdom. [news:/s/00:17.3-00:21.6] A9y};g1tC
The African grass mouse is a good example [news:/s/00:21.6-00:24.8]  . ~ { L}'[D
Most mice are [b]nocturnal[/b], but the  African grass mouse is active during daylight hours [news:/s/00:24.8-00:31.0] .L/lY.z/G mT+IP
This means that it spends its days searching  for food  [news:/s/00:31.0-00:34.0]HC,L/K9D9r
in the [b]semidry bush and scrub habitats[/b] of eastern and southern Africa.  [news:/s/00:34.0-00:39.1] H[}U:y
Its fur is striped,  like a chipmunk's, which helps it blend in with its environment [news:/s/00:39.1-02:27.6] .
A1r hq1v.s s;iD Because it spends a lot of time in  the [b]intense[/b] [b]tropical[/b] sun,  [news:/s/00:44.1-00:48.4] T!AIgg4m-?7G.D
the grass mouse has also evolved two separate [b]safeguards[/b] against the  Sun's [b]ultraviolet[/b] radiation. b V"Us8Fm.uc@
[news:/s/00:48.4-00:54.8]
%B,M _]1EY+K7a First, like the populations of humans in this region of the world, the skin of the grass mouse contains lots of melanin, or dark [b]pigment[/b].  [news:/s/00:54.8-01:04.3]
b#G3?xy0h Yc]U Second, and quite unusual, this  mouse has a layer of melanin-pigmented [b]tissue[/b] between its [b]skull[/b] and skin [news:/s/01:04.1-01:12.4] P6p7Y/i;?F
. This unique "[b]cap[/b]" provides an [b]extra[/b] measure of protection for the grass mouse and three other types of African  mouselike rodents that are active during the day.  [news:/s/01:12.4-01:22.3] 9A8B)oM)t W*eD wd8g0[h|
The only other species scientists have identified  with the same sort of skull [color=red]adaption[/color] is the white tent-making bat of the Central American tropics.  [news:/s/01:22.3-01:32.3]
T @9m4}k(Sn3sWP Although these bats sleep during the day, they do so curled up with their heads exposed to the sun.

#37

Word comes from California of a [b]new weapon[/b] in the [b]war[/b] on [u][b]household[/b][/u] pests.  [news:/s/00:08.7-00:14.0] X
[F`9N!O
Two scientists  working for a [b]firm[/b] in Anaheim, California, have developed a method to [b]eliminate[/b] insects without using dangerous chemicals. [news:/s/00:14.0-00:21.3] 6cx$ZU*r
The new poison? Hot air.  [news:/s/00:21.3-00:23.8]
&d5o.H9\fHqF8^ The basic idea is that insects cannot [u][b][color=blue]adjust[/color][/b][/u] to temperatures much above normal.  [news:/s/00:23.8-00:28.7] -s%lM`R tr
In [b]laboratory[/b]  experiments, [u]cockroaches and termites[/u] can't survive much more than a [b]quarter[/b] of an hour at 125  degrees Fahrenheit, or about 50 degrees centigrade.  [news:/s/00:28.7-00:39.3] M-_H&qo
The new method involves covering a house with a huge [b]tent[/b] and filling it with air heated to around
0Y#M/g;o(d 65 degrees centigrade. Hot air is forced in with [b]fans[/b], and the tent keeps the heat inside the house
ep+D Er(Rvj [news:/s/00:39.3-00:51.7] .
IOj*da Since termites try to escape by [b]hiding[/b] in wooden beams, the heat [b]treatment[/b] must be continued for (Wa6{,Yk:S
a [b]full[/b] six hours. But when it's all over, and the insects are dead, there are no [b]toxic[/b] [b]residues[/b] to
+N I8E"[0bNy{ endanger humans or pets, and no funny smells.  [news:/s/00:51.7-01:06.8] X$^c9~[
n
Scientists claim that there is no danger of [b]fire[/b], either, since very few household materials will burn ,Yk,T\@"_G
at 65 degrees centigrade [news:/s/01:06.4-01:14.2] .
3}a v @[@ In fact, wood is prepared for [b]construction[/b] use by [b]drying it in ovens at 80[/b] 4B H6f5J8R&A@ PNH
degree centigrade, which is substantially hotter than the air used in this procedure.

#38

located at nasa reseach [b][u]center[/u][/b] in il, is 5000 gallon vat water, and inside the tank is underwater [b]treadmill[/b] ,designed by D Newman,an [b]aerospace[/b] engineer [news:/s/00:06.3-00:20.1] 6D0[N4V2Rzg8|
zGtYqTWd
for 4 ys, Newman [b]observe[/b] [color=darkorchid]scuba divers[/color] as they [b]simulated[/b] walking on the moon and on mars on her underwater [b]moving belt[/b]. [news:/s/00:20.1-00:28.9]6t;L9]/QPLp
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She wanted to discover how the [b]gravity[/b] of the Moon and of Mars would affect human movement. [news:/s/00:28.9-00:35.4]
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;t:A4l[.?4q to do this Newman [b]attach weights[/b] to divers and then [b]lowered[/b] them into they tank and onto treadmill. [news:/s/00:35.4-00:42.8]
2vHanGY&k^#adf f VCDUO1Y
this [b]weights[/b] is carefuly [b]adjust[/b] so that divers can [b]experience[/b] underwater the [b]gravity[/b] of the moon and the mars as they walk done in the trm. [news:/s/00:42.8-00:52.4]
'QM2Z/y)_p3[ s^^/`
M+`+~5b;p newman conclude that walkin on mars will probally be easier than warking on the moon. [news:/s/00:52.4-00:58.4]:rnp5dZR;D
r@2@"v&IxR
the moon has less gravity than mars does. [news:/s/00:58.4-01:02.1]
p.~/mH[~ f7x o2B )COZY+CU
so at [b]lunar[/b] gravity, the divers [b]struggle[/b] to keep their balance and walk [b]awkwardly[/b] [news:/s/01:01.8-01:07.9]
\C)Gxv F
~;OQ8I E !Jb7s_M!rA0obM7s
but at martian gravity, the diver had stead ? and stability and can easily adjust to pace of one 1.5 mile/m [news:/s/01:07.9-01:18.1]'M/y$r*O7t1H8H/T

g+Fw+gE]"ED ] As Newman [b]gradually[/b] increased the speed of the treadmill, the divers took longer, [b]graceful strides[/b] until they comfortably settled into an even [b]quicker[/b] pace [news:/s/01:18.1-01:28.6] .
^.p;u!Qw W'r7Chm F H)o[$U&mh&f
Newman also noted that at [b]Martian[/b] gravity, the divers needed less [b]oxygen[/b]. [news:/s/01:28.6-01:34.0] {ae;h$s_}8\

K&LF ]Qh The data Newman [b]collected[/b] will help in the future design of Martian space suits. [news:/s/01:34.0-01:39.3] Compared to lunar space suits, Martian space suits will require smaller[b] air tanks[/b]; and, to [b]allow for[/b] freer movement, the [b]elbow and knee[/b] areas of the space suits will also be [b]altered[/b]. [news:/s/01:39.3-01:51.4] #38

#39

some of u maybe [b]familar[/b] with the apollo program geolgical studies the moon during 1960 [news:/s/00:03.9-00:11.0]
3L/` P#?7i] H+IPi C
2r^/Ik-}T'oTH9u } but u may not be aware of the [b]extensive[/b] research [b]precede[/b] [b]to[/b] those studies. [news:/s/00:11.0-00:16.6]
9qAl-{2I#T H/|y tu*zp ~6Rwc
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works of 2 early researchers is very impor in determining the nature of surface of moon. [news:/s/00:16.6-00:22.4]
PQzvEhMx
V*MJ#o!F*A~ back in 1892,a geologist named ? was chanlleging the [b]previaling[/b] views about [b]lunar[/b] surface [url=news:/s/]news:/s/[/url] +Fm[g Z$|b
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at that time, most scientists thought the crater on the moon had been created by volcanic action [news:/s/00:22.4-00:37.6] 6}dSjSL7X W:~q

Ab2|m9U!|
GIQ D mades some careful telescope studies. [news:/s/00:37.6-00:40.6]
fFr#DOw7dh0J
wl ?B6^ there were no [b]spacecraft[/b] back then so telescope is the best way to observe the moon. [news:/s/00:40.6-00:45.2]
,H#@
Fh kT6j A5o
"^/N3_ M%n YtEFY#Q he concluded that the lunnar crt is so uniform,that they had to be the result of [b]falling[/b] bodies ,such as meteorites [news:/s/00:45.2-00:54.5] t3G5M(@ oK@
MC/`.L Vl
I [b]posted the enlargements[/b] just some of the drawings on the [b]board[/b]. [news:/s/00:54.5-00:57.9] *bm5h$bgB4P0~&h

6x$D&U k-~5` _)h If you compare them to those in your [b]text[/b], you can see that his are amazingly [b]accurate[/b]. [news:/s/00:57.9-01:04.2]*U_xmbBTtny

3N;Oh*H,f|!Tj;k9W.A Still, his [b]contemporaries[/b] rejected his work. [news:/s/01:04.2-01:08.1] dO9V8e-K$kn|n#v

c6i4M(vDF 50 years later, a graduate student named Wolf Baldwin [b]reasserted[/b] Gilbert's [color=blue]species[/color]?. [news:/s/01:08.1-01:14.4]
N a H
mid!x 5F.e"Z/YO*e
He too [b]met with resistance[/b] and he left academics to run his family's machinery business. [news:/s/01:14.4-01:20.1] `M^%iDJ3RI-@(w
5}"V-X.Pe7m
But he didn't give up his research. He worked alone in his [b]spare[/b] time, and eventually wrote an [b]influential[/b] book called "the face of the moon". [news:/s/01:20.1-01:29.8]V-kj'k$Y"F&i

g%mC nz A young geologist who read it was so inspired that he [b]persuaded[/b] NASA to [b]incorporate[/b] geology into the Apollo missions [news:/s/01:29.8-01:38.1] .
K+h'`*D+t[@}cA*c [2\9nY!ZXD
Well, the Apollo missions eventually confirmed most of Baldwin's ideas, which is [b]astonishing[/b], [b]considering[/b] that he wasn't a professional scientist. [news:/s/01:38.1-01:48.3]

加油！:lol

#40 OG track 22

Ok, let’s talk about the organization and structure in a company.
]NX8PQt How are companies typically structured?  [news:/s/00:09.0-00:11.2]
,E\U
xTv6zJG W: Functionally
~:ry2U-Cf0O And?
nN R7w$T];{k)v W: By projects.6Mh5b/L^1a
F2H
\ z
Right. By function and by projects.  [news:/s/00:11.2-00:18.4]
!CO'pn M+T Twenty years ago, companies were organized in functional groups  [news:/s/00:18.4-00:22.0]
+J4B6nh4c%| where people with certain expertise work together as a unit, [news:/s/00:22.0-00:25.6]
A[)HZe the architects in one unit, the finance people in another unit.  [news:/s/00:25.6-00:30.1] 3D$U Q{e\ A
Ep
While nowadays, a lot of companies are organized around projects, [news:/s/00:30.1-00:33.6] V/W9Iw?L3B9z-Ja
like a construction company could be building its office building in one city, and an apartment house
'r3}vl2cW [news:/s/00:33.6-00:40.0]  somewhere else,  [news:/s/00:40.0-00:41.1]
K/msX r and each project has its own architects and engineers. [news:/s/00:41.1-00:45.7] ,Cv.K(H/i%lA.k
Now, the good thing about project organization is  [news:/s/00:45.7-00:48.2] N-xs~0}B[ hh
is that it’s easier to change to adapt to the needs of the project.  [news:/s/00:47.9-00:51.9] p:f
Sa0B ~
It’s a small group ,a dedicated team ,not the whole company. [news:/s/00:52.0-00:56.4] u-u3c8Kth4Bg
Now with that in mind, [news:/s/00:56.4-00:58.2]
,AWP6|4E here is a question for you.  [news:/s/00:58.2-01:00.2]
tmP U%Z,c!|-yqX#q Why do we continue to organize ourselves by function even now,  [news:/s/01:00.2-01:04.3]
lpC;w b"g6Lt when in fact we admit that projects are the lifeblood of a lot'of organizations [news:/s/01:04.3-01:09.6] "F"HUdU2n"w
, why do some companies maintain a functional organization instead of organizing around projects [news:/s/01:09.6-01:15.6] ? Yes?
3L4fE_2uTK!Nz W: Because if you don’t have that functional structure within your organization,  [news:/s/01:18.3-01:22.1]
P P\2qfg3^ chances are that you have a hard time to meet the goals of the projects [news:/s/01:22.1-01:25.7]  ,D7G8oB7G2p
Why?
,F'iuZ;o3~ W: Why?
J]/k7o| Listen; let’s say we’ve gotten four new cars we want to design [news:/s/01:28.5-01:32.6] .
w)u,yj
Ct.xy0M4V Why do we need a functional organization? Why not just organize the company around the four projects?  [news:/s/01:32.6-01:39.5]
%mC1b*y8s0E These people make car No. 1, these other people make car No.2.  [news:/s/01:39.5-01:43.2] eS
];P8`DT
t
W: but who’s going to be responsible for work? You know, the way you tell who's… [news:/s/01:43.2-01:48.2]
$?2wMf[}d Well, we’ll appoint a manager, new car No.1 manager, car No.2 manager, they are completely responsible. [news:/s/01:48.2-01:57.1] /\!Mo)w1q5eBR9S
Why should we have a single engineering department that has all four cars passing through it? if+wd+y;x8u
[news:/s/01:56.9-02:02.7]
.z5L Gy|F2YT r W: When you design a car, you need the expertise of all the engineers in the company.  [news:/s/02:02.5-02:07.4]
/x[mab r-_ Each engineer needs to be in touch with the entire engineering department.  [news:/s/02:07.4-02:12.0] M~^ F({ yz,s ][
Yeah, but I keep asking. Why? I want to know why. Yes. [news:/s/02:12.0-02:19.2] -{&k*f$B/wmynE*Y
M: Well, to eliminate redundancy's, probably one of biggest factors in the organization, [news:/s/02:19.2-02:25.1]  so that… so there is… standards of, for uniformity and efficiency in an organization. [news:/s/02:25.1-02:33.5]
a2k;h5^$n m cC%K|'Q7w Ok, and that’s probably the primary reason for functional organization right there is that we want some engineering consistency [news:/s/02:33.5-05:24.4]  ,A/p'q;GGR.K
we want the same kind of technology used in all four cars. If we disperse those four engineers into four parts of the organization and they work by themselves, there is a lot less chance that the technology gonna to be the same from car to car [news:/s/02:42.8-02:58.0] .
w6e1[T}4pW So instead we maintain the functional organization. [news:/s/02:58.0-03:01.4]  That means the engineers work together at one part of the building and their offices are next to each other because we want them to talk to each other. [news:/s/03:01.4-03:09.5]
~ eTQ"_ P When an engineer works on a project, they bring the expertise of their whole functional group with them. [news:/s/03:09.4-03:17.2]  
?Km2p2n1D+S But there is a downside of that, isn’t there? I mean organizing a company into functional groups is not all positive. [news:/s/03:16.8-03:24.6] 3{
`/L8A/U})h
Where is  allegiance of those engineers? It’s to their coordinator, right? It’s to that chief engineer.  [news:/s/03:24.4-03:31.5]
[QL/R }M@f0E7ga But we really want our one engineer, the engineer that’s working on the car No.1. we want that person’s loyalty to be to the project as well as the head of the engineering group [news:/s/03:31.5-03:42.1] `0jf b3I;ip
We really want both, don’t we? We want to maintain functional organization so we can maintain uniformity and technology transfer expertise [news:/s/03:42.1-03:52.5] . We want the cutting edge expertise in every group. But at the same time, we also want the engineer to be totally dedicated to the needs of the project.  [news:/s/03:52.5-04:01.4]  1Z'sF_^|8J~c(k
Ideally, we have a hybrid, a combination of both-functional and project organization [news:/s/04:01.4-04:09.6] . #xB%H-y@ XZL
But there is a problem with this kind of hybrid structure [news:/s/04:09.6-04:12.9] . V`$P4s?6_h)z
When we have both, functional and project organization, well, what does that violate in terms of basic management principles?  [news:/s/04:12.4-04:20.7]
)N*j!md)s t W: Unity of command.3V5hKA
Y7a
Unity of command. That’s exactly right. [news:/s/04:20.7-04:25.6]  [#GE5ElR@#Z
so this is vicious violation of unity of command, isn’t it?  [news:/s/04:25.6-04:30.5] z5YN9S8}r/L
It says that this engineer working on the project seems to have two bosses. We’ve got the engineering boss and we’ve got the project manager boss. But the project manager is responsible for the project and is not the official manager of the engineer who works on the project.  [news:/s/04:30.8-04:49.3]
5\f&x Jowz?n2~ And we try to maintain peace in the organizations, and sometimes it’s disrupted and we have conflicts, don’t we?  [news:/s/04:49.3-04:56.9] gZ)G-Xmx
The project manager for car one wants a car part to fit in a particular way---for its specific situation and specialized case. [news:/s/04:56.9-05:04.7]  8m6oJnY\"v'u,|
Well, the engineering director says No, we get to have standardization. We get to have all the cars done this way. We can’t make a special mode for that particular part, for that particular car. We’re not going to do that, so we got a conflict [news:/s/05:04.7-05:22.9]

#41

OG track17X,d F;E#G$d t3oImH

"B(T#X]B botany class6uN6E&X0L`Ou%m P

`!t2fX ^$J Ok. So we’ve talked about some different types of root system of plants and I’ve show you some pretty cool slides. But now I want to talk about the extend to the root system---the overall size of the root system: the depth.  [news:/s/00:03.9-00:17.7]
s]Ebn
I want to tell you about one particular experiment. [news:/s/00:17.7-00:20.9]
,Qo/{Oz)Uyi M I think you’gonna to find that’s pretty amazing. Ok, so there was the scientist. This very meticulous scientist decided the best place to see a whole root system, to actually see how big the entire system got, [news:/s/00:29.8-00:36.1]  the best place would be to grow it, where?  [news:/s/00:20.9-00:36.1] 0|(qf*B%W*Wyf
W: Um…, water?
OXeZ L@ztb9MpN In water. So he took rye plants. It was rye plants and he started growing them in water. Now, you’ve all heard of growing stuff in water before, right?  [news:/s/00:36.1-00:47.3] 0Lyx#`t C+IGBj
M: It's done commercially, like to grow vegetables and flowers?
"Ae@w:s5tx/I-W;|*PH^ Right. They grow all kinds of commercial crops in water. So if you are growing things in water, you can add fertilizer. [news:/s/00:47.3-00:58.6]
L:K tF7c)wE6zc What you need to do to that water, besides put fertilizer in it,  [news:/s/00:58.6-01:02.2] V4fz&rf
anyone ever actually try to grow plants in water? You must bubble water through it. bubble gas through it. I’m sorry, you must bubble gas through it. So gas, you have to bubble through.  [news:/s/01:02.2-01:12.4] MP$X+LA3o t&O!T
Think about the soil we talked about last week, about growing plants in soil. [news:/s/01:12.4-01:17.5]  9_
L-a1z0T
?l$X
Think about some of you who have killed your favorite house plants, 'cause you love them too much. If you over water, why do your favorite plants die?
)p+U~+^H*F Oh, no oxygen.  [news:/s/01:17.5-01:27.4] 7d(rP3O V9lGl|
Not enough oxygen for their roots. [news:/s/01:27.4-01:34.0]  Which do what 24 hours a day in all seasons.  [news:/s/01:30.3-01:34.0]
[ZUyB+RS/f
7At'OH7m@r&i W: Respiration.
.ZEh H c Respire. Respiration, they breathe.  [news:/s/01:33.8-01:38.0]
Rggc*ZP%x8{V So if you just stick rye plants in water, it doesn’t make difference how much fertilizer you add. You also need to bubble gas through water. So they have access to their oxygen. [news:/s/01:46.9-01:49.9]  If they don’t have that, they are in big trouble.
G\$Zx:[s&r [news:/s/01:38.0-01:52.2]
XI2[Ptb D Ok, so, this guy, the scientist, grew a rye plant in the water so he could see the root system how big it got, its surface area [news:/s/01:52.2-02:01.0] .
$J:E+m1y-XeY7@2f I read about this and the book said one thousand kilometers of roots. I kept thinking that has to be a mistake. It just doesn’t make any sense to me [news:/s/02:01.0-02:10.9]
!IM6TR,v+g that it could be right, but that is all the books have. No one has ever corrected it.  [news:/s/02:10.9-02:15.9] [url=news:/s/]news:/s/[/url]
A ||7J'L,~9E
@$cO4Fw7m`p~ So let me explain it to you about this rye plant. If you take a little seed of many grasses and remember rye is a grass [news:/s/02:15.9-02:24.9] . aeO`-m6Zp
If you take a tiny little seed and you germinate it, actually take one of my least favorite grasses that starts growing about May. [news:/s/02:24.9-02:32.6]
ydakA What’s my least favorite grass that starts growing about May?6h,@APr]1V
M: Crab grass. [news:/s/02:32.6-02:37.9]
|9X OJ,Y Crab grass. Remember how I showed you in the lab, one little seed starts out producing one little shoot, then at a week so later, you’ve got about six shoots, and three weeks later, you’ve got about fifteen shoots coming out all directions like this [news:/s/02:37.9-02:54.1] .
;\`[!v"@s All those little shoots up there? Well, that’s what they did with the rye. [news:/s/02:54.1-02:58.6]
V stDvg(k2J;N … and a little seedling started and pretty soon there were several shoots and then more shoots. In the end, that one single seed produced eighty shoots with an average of fifty centimeters of height. [news:/s/02:58.6-03:11.7]
5_:ZBr3A
r From one seed, eighty shoots coming out, average fifty centimeters high. [news:/s/03:11.7-03:17.6]
+tIR!wGdvA+mtG When they looked at the shoot, verses the root surface, they found the shoot surface with all the leaves had total surface area of about five square meters.  [news:/s/03:17.6-03:28.3] 0k\2yR[j8S
Now, here’s the bigger [news:/s/03:28.3-03:30.1]
0W%x3S)FM?4}9SF~w;L*C When they looked at the root surface area, you would expect the root and the shoot would be in balance, right? So they should be pretty close in terms of surface area, right?AeNF?(NaQx!l f-i
M: o.S-a7x W C5t
What’s that? Do somebody say no? Well, you’re absolutely correct. [news:/s/03:30.1-03:46.0]
:x~e3}p8}Z I,y
? Instead of five square meters, the root system was found to have more than 200 square meters of surface area. Where did all these extra surface air come from? Who did it? Who was responsible for all those extra meters of surface area. What did roots do to increase their surface area?  [news:/s/03:46.0-04:05.9]
/Z$lC/Q y7[{&y_+`O W: Root hairs.
Tluht Root hairs, that’s exactly it. So those root hairs were responsible for an incredible chunk of surface area. They constantly have to be spread out of water, so they can absorb minerals from the fertilizer and of course they need oxygen access as well.  [news:/s/04:05.9-04:24.5]

英雄……该发更好看的勋章了……

#42              5 26
$E-h*^g?,@i8m(Bc "~t6y)X3j!r(S]ef1s:W}

2}TZ9~^0ZMz 1)2 students;t boj\
pretty good history lecture,donot u think2wL;|+p6W
I`^}
well to be honest, ...what doc M meant by "partible [b]inheritance[/b]",  [news:/s/00:15.3-00:19.3] ${7Ci"?A%Z
the man 's [b]property will be divide equally[/b]   [news:/s/00:23.7-00:25.9] \K1cjc2}+m.Q

])}0F _{%~K all the property goes to eldest son
2]+FC8U']1y5zO,e --------------------------
%z:]}@"]g~O&y 2)
;vyrBE6Xd} when they can support themselves [b]solely form the profits[/b] of their business. [news:/s/01:30.7-01:38.8]  
5F%z|
B8b5h4r they usualy face [b]stiff competation[/b] from large ,[b]more established[/b] companies.  [news:/s/01:42.4-01:47.7] )N3}6A7t)Z;_wA(K
have company have [b]cash reserve[/b] , ...[b]abosrb losses[/b] more easily the small firms can.  [news:/s/01:47.7-01:53.8] g7PQ2b];Q
still, with the right [b]combination[/b] of factors,  [news:/s/01:58.8-03:05.5]
[!`l$]i w%@ bicylce shop ...run [b]entire[/b] operation by himself  [news:/s/01:58.8-02:03.4] -jQ.Ve0Yn&i1jD N
buy [b]inventory[/b], repair   [news:/s/02:03.4-02:07.7]
DC(I\*m build the [b]display[/b] and clean the shop kk sN*@xc:mZ`
manage to [b]stay in[/b] business.  [news:/s/02:07.7-02:13.4] q R!kF/|Sd*U&V
b
  with hardwork, good mangmanet, and [b]a product or servise for which where's demand[/b]. [news:/s/02:13.4-02:19.7] |%bd&s+_ sV6b!F
it's absolutely [b]essential to be a competent[/b] manage. TE4K6J
e7sH
u alos need the [b]thorogh[/b] knowledge of your field. a combination of [b]former education and practic train[/b] suit to your kind bussness.  [news:/s/02:28.1-02:35.7] 3Xi2U2O](REeV
to run a store, you need to know to how to keep track your [b]inventory[/b] what you have to [b]sell[/b].
~Y*[ b;WCs and your [b]accounts[/b], so u need a course of counting and bussiness. [news:/s/02:35.7-02:45.3] "JGu6P\7l
experience in [b]retailing[/b] is helpful too.  [news:/s/02:44.8-03:05.5] c+iw$OvK\
your primary respon[b] center[/b] on planning ,managment and marketing ,so organizational skill are a must.
4HT(o9]JQ `!kDO [news:/s/02:47.8-02:54.6] LYv-czE6x
to keep your store in business , u [b]adapt to[/b]
VT)L
s3Xb6PkR/? in [b]innovative[/b] ways.  [news:/s/02:54.6-03:05.5]

#43     Delta  1-3 （3/5）
xi-C9GW;j,nbt]
U5[z ~K9tQnY!yh the place to go for parking permits is safety and security office on 1st floor  [news:/s/00:10.9-00:15.2] on the unvis service building  [news:/s/00:09.4-00:17.1] ~$A2P.V`$m5qXH
parking permits are required for all on-capmus parking [news:/s/00:17.1-00:21.1]
/RPV6z7Fy5qs special permits are avalible for students who carpool  [url=news:/s/]news:/s/[/url] [news:/s/00:21.1-00:24.5] ~W9[a,q#ZD$K
u can also get passes for the 4th Avenue Garage, bus passes and maps there  [news:/s/00:24.5-00:29.8]
&l\tJ5`'D1g@
kR1H{jfL.h these inlcude escort services to and from your car [news:/s/00:40.8-00:43.8]
%T(T8f9~j-]!@ kM , criminal incident reporting and investigation,lost and found  , [news:/s/00:43.8-00:47.9]
7F6H.}&Nf:i and battery jumper service [news:/s/00:47.9-00:51.1] . %v2a:G+l8F
----------------------
!k*MJIL although the original american indian culture were highly diverse, [news:/s/01:10.6-01:14.6] @,HJE8{DX_
they were similar in many of their traditions.  [news:/s/01:14.6-01:16.9] ] 5t8N|LiK
religious beliefs and rituals permeated every aspect of indian life.  [news:/s/01:16.9-01:21.6]
M_l;H:q`F+R southwest tribes such as the hopi and the apaches had a rich and elaborate  year-round sequence of ceremonials ,including songs, dances, and poetry.  [news:/s/01:21.6-01:31.4] 4s-Q'vcli4Bp
the hopi performed dance to bring rain.  [news:/s/01:31.4-01:33.9] [url=news:/p/]news:/p/[/url]
UF:z9RX!T;_ the Apaches engaged in a speic dances and ceremonials to gain support of the sprits
o@)Wv.p-G before undertaking raids or going into war  [news:/s/01:33.9-01:41.9] ~ K
\_d}_J ZQ?
the plains tribes often sought contact with the spirits by going on a vision quest. [news:/s/01:41.9-01:47.7]
YbB6^Kp&D/M*n -----------9g7Jo*T1n/uw^0H5S
each kind of insurance protect its policy holder agaist possible  finanal loss. [news:/s/02:04.0-02:13.2] 7o
U
nx$f5w;CR1S-AXh
life insurance pays your family a certain sum  upon your death. [news:/s/02:13.2-02:29.1] /LD%_o M\5p8t%aT
the purpose of life insurance is to provied your family with financial security, an immediatet estate that will allow they to maintain the household after you die. [news:/s/02:13.2-02:29.1]
y dL_k health insurance protects you against large medical expenses. when you pay premiums to your insurance company, you can ensure payment of your medical bills. [news:/s/02:29.1-02:40.1] b!Z @1EC%W!H)Ea
pp7u7V$}'Xq
another kind,, property liability insurance is sometimes called casualty insurance,  [news:/s/02:40.1-02:46.6] 5x2^;K1`$c
because it cover the cost of accidents,like automobile accidents,fire, and theft [news:/s/02:46.6-02:53.2]
X#k~*M@ . if u are like most people, your home is the largert single investment you make in your life. this is why most homeowners have some types of property liability insurance. [news:/s/02:53.2-03:05.0] ^N"{ ]k%@Yj!u-TE
[news:/s/02:40.1-03:05.0]

完全没错误？

很多很多啊 老大
hp0F.w:\v 考到这里来就没格式了r7QQ_8\;`*\U3r
'YgK,ffTx@2~
还是听不懂，崩溃的边缘了 '[7da&] h-nzV
tVn!XP
现在的水平是听第二or三次 才听懂。。。不知道7.12前还能进步多少u2c[wN%B%A

1JI%M!oM C,R'b
r/l(r [[i] 本帖最后由 pulse 于 2008-5-26 13:31 编辑 [/i]]

[quote]原帖由 [i]Horse[/i] 于 2008-5-23 22:31 发表 [url=http://www.xiaoma.com/bbs/redirect.php?goto=findpost&pid=154440&ptid=11866][img]http://www.xiaoma.com/bbs/images/common/back.gif[/img][/url]M.j!j+`#wO
M L&J#|
英雄……该发更好看的勋章了…… [/quote]"lnC \jU4A

VBV
O~r*O%r!F 希望不会变熊了 不想让自己再失望或者失落了

lz最近不冒泡了，坚持住啊！