A-A+
Why so few people are left-handed ______.A.has
问题详情
Why so few people are left-handed ______.
A.has nothing to do with heredity
B.is not known by scientists
C.has little to do with the working of their brains
D.is that left-handers are mainly twins
参考答案
正确答案:B
解析:本题为细节推断题。在第五段中提到“Perhaps the greatest puzzle of all is not why some people are left-handed, but rather why so few are.”(也许最让人迷惑不解的并不是为什么有些人是左撇子,而是为什么他们的人数这么少。),“puzzle (迷)”即“not known”。