万用表使用完毕后,应将选择开关放在交流高压挡。()
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变压器绕组采用三角形接线时,绕组的线电压()其相电压。
A. 等于
B. 小于
C. 大于
A.It is healthier than green tea.B.It can grow in drier soil.C.It will replace green te
A. It is healthier than green tea.
B. It can grow in drier soil.
C. It will replace green tea one day.
D. It is immune to various diseases.
新4#及5#高炉TRT的高压配电采用单母线不分段方式,并网到高炉变电站。()
“孤舟蓑笠翁,独钓寒江雪”是出自于哪位大诗人的手笔?
A:毛泽东
B:柳宗元
C:元彪