作者izzylf (风)
看板GMAT
标题[问题] CR问题
时间Tue Jun 10 11:01:28 2008
Adult female rats who have never before encountered rat pups
will start to show maternal behaviors after being confined with
a pup for about seven days.This period can be considerably
shortened by disabling the female's sense of smell or by removing
the scent- producing glands of the pup.
which of the following hypotheses best explains the contrast
described above?
答案是
the development of a female rat's maternal interest in a rat
pup that she did not bear is inhibited by the odor of the pup
请问有人知道这题为什麽是这个答案吗?
感谢回答的版友
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