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问题 多项选择题

事故处理：“三不放过原则”是（）

A、事故原因不清不放过

B、企业人员没受到教育不放过

C、无防止措施不放过

D、责任人没受到惩罚不放过

E、事故等级划分不清不放过

答案

参考答案：A, B, C

判断题

平衡力系中任意一力对于其余的力来说都是平衡力。
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选择题

— Where is Mr. Lee? I have something important to tell him.

— You _____ find him. He _____ Japan. [ ]

A. won't, has gone to

B. may not, has been to

C. may, has gone to

D. can't, has been to

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