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【多选题】
轮换电流互感器及其二次线时应注意()。
A.
选用电压等级、变比相同并经试验合格的
B.
如因容量变化而需更换时,应重新校验保护和仪表倍率
C.
更换二次接线时,应考虑截面芯数必须满足最大负载电流及回路总负载阻抗不超过互感,器准确度等级允许值的要求,并要测试绝缘电阻和核对接线
D.
在运行前应测量极性
E.
更换时不能造成二次绕组短路
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举一反三
【简答题】我们产品质量的稳步提高在很大程度上是由于设备有所改进。(owe to) in the quality of our products the improvement of our equipment.
【单选题】he steady rise in the quality of our products much to the improvement of our equipment. [     ]
A.
means
B.
earns
C.
benefits
D.
owes
【判断题】用IUPAC系统命名法命名化合物 是5,5-二甲基-2-己醇;
A.
正确
B.
错误
【简答题】Hello! The University of Hawaii is located just outside of downtown Honolulu in green Manoa valley . We invite you to visit and want to let you know about our learning programs, the richness of our cu...
【单选题】间歇性精神病人在不能辩认或者不能控制自己行为时,实施严重危害社会行为的( )。
A.
应当负刑事责任
B.
不负刑事责任
C.
应当负刑事责任,但可以减轻或者免除处罚
D.
待治疗痊愈后再追究刑事责任
【单选题】With the help of the new equipment, our factory produced _____ VCD players in 2009 as the year before. [     ]
A.
as many as twice
B.
twice more than
C.
as twice many
D.
twice as many
【单选题】The equipment of our factory ( ) all imported from Britain.
A.
is
B.
are
C.
has
D.
have
【简答题】(6) The adoption of our company’s new set of equipment will greatly down the percentage of defective products.
【单选题】With the help of the new equipment, our factory produced ________ VCD players in 2001 as the year before.
A.
as many as twice
B.
twice more than
C.
as twice many
D.
twice as many
【单选题】The steady rise in the quality of our products owes much to the improvement of the equipment.
A.
产品的质量平稳上增在很多方面取决于设备的改进。
B.
我们产品的质量提高在很大程度上是因为设备的改进。
C.
我们产品质量的稳步提高在很大程度上是由于设备有所改进。
D.
产品数量增加在很多情况下是由于重新装修设备。
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