题目内容

()是指地下水位以下被水所充填的岩土范围。

A. 饱水带
B. 含水层
C. 隔水层
D. 承压带

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更多问题

中心静脉压的正常值是

A. 5-12cmH2O
B. 5-12mmHg
C. 0-5mmHg
D. 0-5cm H2O
E. 0-12mmHg

All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons(EPIRB)().

A. One approved Category I EPIRB
B. Three approved Category I EPIRBs
C. One approved Class B EPIRB
D. Two approved Class B EPIRBs

高大平房仓在人粮前应做哪些检查?

正常的加油方式是:

A. 重力加油
B. 压力加油
C. 燃油交输
D. 使用输油喷射泵

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