下列装置可用于IT系统的第一次接地故障保护的是()。A．．隔离变

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问题单项选择题

下列装置可用于IT系统的第一次接地故障保护的是()。

A．．隔离变压器

B．过电流防护电器

C．绝缘监测器

D．漏电电流动作保护装置

答案

参考答案：C

选择题

My uncle _____ the Party in 1986. He _____ for over 20 years. [ ]

A. joined, has been a Party member

B. joined, has joined the Party

C. has joined, has joined the Party

D. has joined, has been in the Party

多项选择题

应激猪的生产的PSE、肉具有哪些特征？（）

A、色泽苍白

B、切面干燥

C、质地坚硬

D、质地松软

E、有渗出液