单选题In this passage, the author mainly tells us that _____.Aeveryone can be forgetful sometimes regardless of one’s ageBwe can prevent our sound mind from aging with certain methodsCbrain aging starts from the time when we are in our 20s and 30sDmemory loss is a sign that shows we are getting old
单选题
In this passage, the author mainly tells us that _____.
A
everyone can be forgetful sometimes regardless of one’s age
B
we can prevent our sound mind from aging with certain methods
C
brain aging starts from the time when we are in our 20s and 30s
D
memory loss is a sign that shows we are getting old
参考解析
解析：
本文主要介绍了人脑老化现象和健脑的方法。
本文主要介绍了人脑老化现象和健脑的方法。
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