题目内容

What’s the purpose of the program?/imgcache/attached/media/20140228/20140228163450_8214.mp3

A. To keep all the members in the group work together.
B. To make the people there understand the meaning of work.
C. To find a way to solve the generation gap.
D. To help people enjoy their work.

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A. 1、2、3号;
B. 2、3、4号;
C. 3、4、5号

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A. 正确
B. 错误

苯丙酮尿症群体发病率为()

A. 1:10000
B. 1:100000
C. 1:1000
D. 1:500
E. 1:50

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