正确答案: C
decrease
题目:An alternator is being paralleled with one on the line At the instant the circuit breaker is close, the frequency of the incoming alternator will normally
解析:C
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举一反三的答案和解析:
[单选题]In the navigation,_______cause the shafting over load most easily
changing the main engine running direction suddenly
[单选题]在第一次上紧贯穿螺栓时,由于螺栓各承压部分产生塑性变形,使一部分预紧力丧失,解决的办法是上紧前( )。
先上紧螺栓,然后再旋松
[单选题]I haven’t bought ________ toys for my children
any
[单选题]互见中的一艘机动船,当与下列船舶相遇存在碰撞危险时,下列何者属于直航船________。
正前方驶近的帆船