为了保证保护装置能可靠地动作,27.5A的接地电流只能保证断开动作电流不超过多少的继电保护装置。()
A.18.3A
B.13.8A
C.11A
D.9.2A
参考答案:A
There is still much to discuss;________,we shall return to this topic at the next meeting.
A.yet
B.therefore
C.otherwise
D.however