.According to some doctors, one of the ways to prevent us from growing old is to make sure that our brains get enough .A．performanceB．exerciseC．experienceD．sport 题目和参考答案——青夏教育精英家教网——

题目内容

.
According to some doctors, one of the ways to prevent us from growing old is to make sure
that our brains get enough___.

A．performance

B．exercise

C．experience

D．sport

B

略

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