【判断题】断路器的―跳跃―现象一般是在跳闸、合闸回路同时接通时发生的,―防跳‖回路设置是将断路器闭锁到跳闸位置。
【单选题】It's fr eezing outside. You _______ put on your overcoat. [ ]
【判断题】断路器“跳跃”现象一般是在跳闸、合闸回路同时接通时才发生,防跳回路的设计应使得断路器出现跳跃时将断路器闭锁到跳闸位置
【判断题】断路器的“跳跃”现象一般是在跳闸、合闸回路同时接通时才发生。防跳回路的设计应使得断路器出现跳跃时将断路器闭锁到跳闸位置。
【判断题】齐步换跑步时,在齐步行进中,听到“跑步-走”的口令后,继续走2步,从左脚开始换跑步行进。
【单选题】听力原文:
A.
Would you like something to drink?
B.
Thanks. That would be better.
【简答题】According to the letter, the Indians believed that ________. A) it would be better for their boys to receive some schooling B) they were being insulted by the offer C) they knew more about science tha...
【简答题】断路器的“跳跃”现象一般是在跳闸、合闸回路同时接通时才发生。防跳回路的设计应使得断路器出现跳跃时将断路器闭锁到跳闸位置。()
【判断题】断路器的“跳跃”现象一般是在跳闸、合闸回路同时接通时才发生,“防跳”回路设置是将断路器闭锁到跳闸位置