题干

The author mentioned mammals in Paragraph 2 to show that __________.

A:keeping control of thoughts is very difficult

B:thinking is a kind of activity limited to humans

C:mammals evolved much more slowly than humans

D:mammals had poor awareness of dangers and opportunities

上一题 下一题 0.0难度 选择题 更新时间:2016-03-21 06:22:04

答案(点此获取答案解析)

B