中性母线差动保护保护目的:检测极线和()之间的接地故障并清除故障电流。
A、极中性母线
B、换流变交流进线
C、换流变阀侧线
参考答案:A
-We should believe in ourselves.
-________Selfconfidence is the first secret of success.[ ]
A.It's up to you.
B.Thank goodness!
C.Let's get going.
D.I'm with you on that.
被称为"西医之父"的医学家是()
A.迈蒙尼提斯
B.帕茨瓦尔
C.阿维森纳
D.希波克拉底
E.胡佛兰德