题目内容

A tank has been sealed and unventilated for a long period of timeWhich of the following conditions does this indicate?()

A. The tank is safe to enter
B. The tank is especially dangerous to enter
Carbon monoxide is present
D. Water vapor present when the tank was sealed has oxidized

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高压客户接入10(20)kV配电设施时。当客户附近现有配电设施开放容量不能够满足客户增容的需求时,业扩供电方案应首先考虑进行配电网络接线方式的(),并重新计算开放容量。若网络接线方式调整后开放容量仍不能够满足增容需求时,应考虑新增或改造配电设施。

A. 调整
B. 改造
C. 新建

甲组和乙组共有86人,乙组和丙组共有88人,丙组和丁组共有91人,问甲组和丁组共有多少人( )

A. 80
B. 87
C. 89
D. 90

以下哪块单板可用于多框级联()

A. SSNI
B. CSNI
CHUB
D. 以上均是

在电子舱通风鼓风机气滤有几个?()

A. 1个
B. 2个
C. 3个
D. 4个

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