题目内容
(请给出正确答案)
[判断题]
一级负荷中特别重要的负荷,除由两个电源供电外,尚应增设应急电源,并严禁将其它负荷接入应急供电系统。()
提问人:网友tangmanyun2019
发布时间:2022-01-07
B.Jack is watching an online video in his room.
C.Jack forgot the English Corner that day.
D.Irene comes to visit Jack to remind him of the English Corner.
B.has been
C.was
D.had been
B.该计算机的DNS服务器设置错误
C.该计算机与DNS服务器不在同一子网
D.本地DNS服务器网络连接中断
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