How do scientists know "Motherhood may make women smarter"? What does the phrase "litters of pups" mean in the second paragraph

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问题 How do scientists know "Motherhood may make women smarter"?
What does the phrase "litters of pups" mean in the second paragraph?

选项 A、Baby rats.
B、Animals.
C、Old rats.
D、Grown-up rats.

答案A

解析词义猜测题。题干意为“第二段的词组litters of pups的意思是什么?”文中本句话后面的对比who have no babies实际上提供了一个相反的情况，所以我们可以推测those who raise two or more litters of pups 中的litters of pups 指的是“鼠崽”。所以本题的答案选A。

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本试题收录于：公共英语二级笔试题库公共英语（PETS）分类