【判断题】电机异常发响发热的同时,转速急速下降,应立即切断电源,停机检查。
【判断题】电机异常发响发热的同时,转速急速下降,应立即切断电源,停机检查。
【单选题】It was in the village ______ now is a small town ______ the earthquake occurred
【简答题】根据以下描述写出云的英文缩写 低而均匀的云层,象雾,但不接地,呈灰色或灰白色层云除直接生成外,也可由雾层缓慢抬升或由层积云演变而来。可降毛毛雨或米雪。
【判断题】电机异常发响发热的同时,转速急速下降,应立即切断电源,停机检查
【单选题】Word came from Chile _____ at least 300 people were killed in the 8.8-magnitude earthquake. [ ]
【单选题】Do you know the brave boy ______ saved several classmates in the earthquake? [ ]
【单选题】The terrible earthquake took place early this month ______ three southern countries meet.