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单选题 英语六级
2016-11-08

A．They have often proved to be as helpful as doing mental exercise．
B．Taking them with other medications might entail unnecessary risks．
C．Their effect lasts only a short time．
D．Many have benefited from them． 
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参考答案

B

答案解析

Q：What does the speaker say about memory supplements at the end?
【解析】B。短文中提到，很多时候人们都没有意识到药物会带来的影响，或是和其他药物一起使用时可能会给你带来更大的危险。B是对短文中taking them in combination with other medications might put you at increased risk的同义转述。

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