下列化合物没有光学活性的是( )A.选项AB.选项BC.选项CD.选项D...

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【单选题】

下列化合物没有光学活性的是( )

选项A

选项B

选项C

选项D

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／； the

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everybody can know and use philosophic theories well enough to deal with the world.

philosophy will help everybody to deal with the world though he is not a philosopher.

everybody has his own views of life and they will practice these views in the world.

it is important for everybody to know and use philosophy to deal with the world.

查看完整题目与答案

【单选题】— Do your parents have the same hobby? — No. My father likes playing_____ chess while my mother enjoys playing_____ piano. A. /; the B. /;/ C. the ;/ D. the ; the

／； the

／；／

the ；／