电容器不允许装设自动重合闸装置。 A: 对 B: 错 正确答案: A...
环境温度升高会加速交联聚乙烯电缆水树枝的延伸。 A: 对 B: 错 正确答案: A...
下列不属于导致复合绝缘子龟裂的原因是()。 A: 外力破坏 B: 循环热应力 C: 机械疲劳 D: 紧固部位机械应力过大 正确答案: A...
下列电容器中,具有极性且将极性接反会引发爆炸的是()。 A: 电解电容器 B: 云母电容器 C: 瓷介电容器 D: 纸介电容器 正确答案: A...
下列缺陷中,介质损耗所不能反映的缺陷是()。 A: 绝缘受潮 B: 绝缘脏污 C: 绝缘部分击穿 D: 绝缘中存在气隙放电 正确答案: C...
11.I ____asleep in the corner, for I remember nothing of what happened during that night. A. might fall B. must fall C. must have fallen D. can have fallen ...
5.cordial A. primary B. sincere ...
19.The order came___ the soldiers leave the small village the next morning. A. that B. when C. which D. what ...
13.Energy is ___ makes thing work. A. what B. something C. anything D. that ...
7.Jean did not have time to go to the concert last night because she was busy___ her examination. A. to prepare B. to be prepared C. preparing D. being prepared ...