单选题_____AbottomBbasisCrootDstem

单选题
_____
A

bottom

B

basis

C

root

D

stem


参考解析

解析:
结合上下文,此句意思为“男女间令人迷惑的差异可能源于大脑”,此空格处应为“渊源”的意思。bottom意为“底部,底端”;basis意为“根本,基础”;root意为“根部,起源”;stem意为“茎”。root符合文意,故选C。

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