【单选题】If you visited our school this month, you would be amazed to see a modern stadium ___ here.A.is
A.
114. If you visited our school this month, you would be amazed to see a modern stadium ___ here. A.is constructing
D.
were being constructed
【判断题】结合书中47页GL314型断路器分闸控制回路图(一),当选择远方操作方式时,ABC三相保护分闸回路中-S10常开触点闭合。
【单选题】结合书中47页GL314型断路器分闸控制回路图(一),当-S10选择开关选择就地时,哪两个触点闭合( )?
【单选题】--- Our family are traveling to Taiwan Island this vacation. --- ________!
【判断题】结合书中47页GL314型断路器分闸控制回路图(一),当选择远方操作时按下-S12按钮,不会接通断路器分闸回路。
【单选题】Come to our school and see ________. [ ]
【判断题】结合书中47页GL314型断路器分闸控制回路图(一),分闸回路设置-S01常开辅助触点的目的是当断路器断开时,触点闭合,使合闸线圈带电。
【判断题】结合书中47页GL314型断路器分闸控制回路图(一),当选择远方操作时保护分闸发送分闸脉冲信号,接通的回路为:保护分闸-S10-K04-S01-Y02-102