gwd1-25&27&28

seasnow

时间长了，根据生物钟受环境影响，是会变的。所以C错。

wzparete

25实际上是问主题，比较阴险！主体句：L32，体会一下与C的对应。

GMAT阿驴

27题应该是C拉  long-term or short-term 并不是重点    这个实验是为了说明在实验是条件下这种动物的反映是一样的  从而就是no difference

mymengming

只要能指出来的时间就是短的，我认为

熏依草

27偶认为选Bwhen diatoms are

observed under constant conditions

in a laboratory, they still display

periodic behavior, continuing to bur-

(25) row on schedule for several weeks.

晴天小狗

A commuter diatom has an unusu-
 ally accurate biological clock, a
consequence of the unrelenting
 (35)  environmental pressures to which
it is subjected; any diatoms that do
not burrow before the tide arrives
are washed away.
我觉得这个是25题的答案所在

而27题不可能是C，整个第二段都是在说时间长了，他们会受影响

      This is not to suggest that the
 (40) period of this biological clock is
immutably fixed

susie810

27题 short term &long term怎么判断？？我选C

[此贴子已经被作者于2006-12-3 11:55:21编辑过]

llxx1985cn

25题D为什么不对啊

llxx1985cn

以下是引用晴天小狗在2006-10-20 16:44:00的发言：

A commuter diatom has an unusu-
 ally accurate biological clock, a
consequence of the unrelenting
 (35)  environmental pressures to which
it is subjected; any diatoms that do
not burrow before the tide arrives
are washed away.
我觉得这个是25题的答案所在

那个黄色的部分，不是正好证明了D的最后几个词吗

llxx1985cn

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