You’d better________the good apples_____

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问题选择题

You’d better________the good apples________the bad ones.[ ]

A．separate；into

B．divide；into

C．separate；from

D．divide；from

答案

答案：C

选择题

Villagers of the danger soon after the big earthquake in Japan，or more people would have lost their lives in the tsunami．

A．were warned

B．had been warned

C．have been warned

D．are warned

单项选择题

安全装置是在设备性能结构中或结构外设置的保证人机系统安全的机构或装置，它应该在设备的（）阶段配备完成。

A、结构设计

B、安装

C、试运行

D、正式运行