题目内容

()工作面每班至少检查3次瓦斯浓度。

A. 低瓦斯矿井
B. 煤与瓦斯突出矿井
C. 高瓦斯矿井

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在碳酸稀土沉淀时什么叫正加料和反加料?

A system has a TCPIP issue that is a known problem. The newest code from the support website has been downloaded to resolve the issue. Which of the following commands should be used to install the new code?()

A. smitty install_commit
B. installp -ugV
C. installp -aX
D. instfix -all

井底车场的选择中,车场应有()的富裕通过能力。

A. 10%
B. 20%
C. 30%

如在其他区域或采用其他方式取样,应当能够()。

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