A-A+
Ethan Sims made his subjectsA．battle their gen
问题详情
Ethan Sims made his subjects
A．battle their genetic inheritance.
B．increase their weight.
C．suffer from hunger.
D．lower their Weight.
参考答案
正确答案：B
解析：文章的第四段讲的是研究人员如何设法让瘦子增加体重。Ethan Sims从犯人中招募志愿者，设法让他们增加体重(Etham Sims got prisoners to volunteer to gain weight)。
