什么叫七政?它又称什么?
参考答案:
古人把日月和金木水火土五星合起来称为七政。又称七曜。
Justin kicked the ball into his own goal. It was _____ his stupid kick that we won the game.
A.because
B.since
C.thanks to
D.according to
高频闭锁零序保护停信需带一短延时,这是为了()。
A.防止外部故障时因暂态过程而误动;
B.防止外部故障时因功率倒向而误动;
C.与远方起动相配合,等待对端闭锁信号的到来,防止区外故障时误动;
D.防止区内故障时拒动。