A-A+

What did scientists think was true？A．Each pers

2022-08-01 21:24:10 问答库阅读 167 次

问题详情

What did scientists think was true？
A．Each person has a fixed weight range
B．Each person has a weight range of 9kg.
C．Each person wants to control his or her weight.
D．Each person wants to eat to his or her heart"s content.

参考答案

正确答案：A
解析：答案在文章的最后—段，科学家们的研究发现证明了他们认为是正确的想法：每个人都有一个固定的体重幅度(each person has a comfortable weight range)。这个幅度可能高达9公斤，但并非每个人的幅度都是同样的9公斤，从而否定了干扰比较强的B项。