专升本考试

【单选题】 Most of us are right-handed and ______.
A．so are monkeys
B．no one is left-handed
C．scientists don't know why
D．we never use left hands

网考网参考答案：C
网考网解析：
本题是对文章细节的考查。文中说Scientists don't know why this happens，与C选项意思一致。故是正确的。 查看试题解析出处>>