Our teacher always sees the _______ side of everything.
A. spot
B. negative
C. efficient
D. robot
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The service in this restaurant is not good. Even the _______ is very dirty.
A. milk
B. salad
C. soup
D. menu
The doctor gave me a chest X-ray and _______ some medicine for me.
A. prescribed
B. floated
C. drugged
D. drifted
断路器的额定峰值耐受电流是说明断路器()
A. 开关短路电流的能力
B. 承受短路电流热效应的能力
C. 承受短路电流电动力作用的能力
D. 关合短路不至于发生触头熔焊的能力
高压断路器的额定开断电流是指在规定条件下开断( )。
A. 最大短路电流最大值
B. 最大冲击
C. 最大短路电流有效值
D. 负荷电流的2倍
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