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【判断题】

绿原酸是一种强抗氧化剂,能形成具有抗氧化作用的羟自由基。( )

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
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【单选题】If those "mad moments"— when you can’t recall what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help. Just as bodies r...

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