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【判断题】
当流过一个线圈中的电流发生变化时,若本线圈电流变化在相邻线圈中引起感应电压,则称为自感现象( )A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】弘扬新时代的爱国主义,必须坚持立足民族,维护___发展主体性。经济全球化是世界经济发展的必然趋势,但不等于全球政治、文化一体化。
【单选题】— Shall we go out this weekend? — Oh, with so much work ____, I don't know if I'll have time to go out. [ ]
A.
to do
B.
doing
C.
done
D.
do
【简答题】导向系统是用来监视盾构精确姿态，提供盾构相对于____的详细偏差信息，便于用户及时纠正盾构的姿态。
【单选题】导向系统是用来监视盾构精确姿态,提供盾构相对于 的详细偏差信息,便于用户及时纠正盾构的姿态。
A.
盾构设计轴线
B.
隧道设计轴线
C.
隧道设计曲线
D.
隧道线路轴线
【简答题】如图所示电路，已知Z 1 =(20+j15)Ω，Z 2 =(5-j15)Ω，外施正弦电压的有效值为220V。求(1) 和 ；(2)各负载及全电路的有功功率P、无功功率Q、视在功率S和功率因数cosφ。
【单选题】找工作之前,你最好做个兼职来增加一些社会经验。
A.
In front of hunting for a job, you’d better do a part-time job to add social experience.
B.
Before hunting for a job, you‘d better do a part-time job to add social experience.
C.
Before looking a job, you’d better do a free-time job to add social experience.
D.
In front of looking a job, you’d better do a part-time job to add social experience.
【单选题】A) She will beat him. B) She will throw him out. C) She will never talk to him. D) She will not love him any more.
A.
She will beat him.
B.
She will throw him out.
C.
She will never talk to him.
D.
She will not love him any more.
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