在不接地的低压电网的绝缘监视中,当3只电压表读数均为相电压时,则表示电网()。
A. 发生一接地
B. 某相绝缘恶化
C. 对地绝缘正常
D. 无法判断
CRH1A型动车组“升弓”按钮(黄色)(),表示网侧电压正在启动,即按钮闪烁并被按下。
A. 亮
B. 闪烁
C. 不亮
D. 不变
Which of the following accurately represents the functionality of a lightweight access point configured to operate in sniffer AP mode?()
A. client traffic allowed, data captured on all channels
B. client traffic allowed, data captured on a single channel
C. no client traffic allowed, data captured on a single channel
D. no client traffic allowed, data captured on all channel
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A. 正确
B. 错误