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问题 单项选择题

为了不影响特大型、大型国有煤矿企业的生产经营资金周转，当企业风险抵押金累计达到( )万元时不再存储。

A．600
B．700
C．800
D．900

答案

参考答案：A

选择题

As I looked at the memorial，I thought about ________ terrible disaster it was for the people in Nanjing then and ________ they were to fight the Japanese invaders.

A．how；how

B．what a；how

C．what；what

D．how；what
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单项选择题

在生产中，打开任一安全门，机器将恢复（）步骤

A、烘干

B、排气

C、零位
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