119. 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? (A) The sense of smell in adult female rats is more acute than that in rat pups. (B) The amount of scent produced by rat pups increases when they are in the presence of a female rat that did not bear them. (C) Female rats that have given birth are more affected by olfactory cues than are female rats that have never given birth. (D) A female rat that has given birth shows maternal behavior toward rat pups that she did not bear more quickly than does a female rat that has never given birth. (E) 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. 答案是E 这题我跟我朋友讨论了很久,我们对於题目的意思,以及问题中的"contrast",还有正确 答案为什麽是E,都有所疑惑,是不是可以请版友不吝告知,谢谢大家了,,, --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 61.56.155.225 ※ 编辑: slin 来自: 61.56.155.225 (03/14 22:43)