题目内容

液化石油气贮罐排污管处可设置一至二道阀门。

A. 正确
B. 错误

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Who is in charge of the auxiliary boilers?()

A. The chief engineer
B. The second engineer
C. The third engineer
D. The fourth engineer

贷款逾期或贷款的表内应收利息超过()天未收回的,系统自动转入表外科目进行核算

A. 90
B. 60
C. 180
D. 45

软岩二次支护的关键是什么?

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