30． What-s the best title of the passage

题目：30． What-s the best title of the passage

A． Boys and Girls． ．
B． Are’Girls Smarter
C． Young Boy and Girl Chimps．
D． Are Boys Slower

喵查答案：B

30.B【解析】全文围绕专家不同意女孩没有男孩聪明这个观点提出事实论据，故选B.