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【多选题】
RC串联电路施加宽度为τ a 的方波脉冲，满足微分电路条件的是______；满足积分电路条件的是______。A.
电阻端输出，
B.
电容端输出，
C.
电阻端输出，
D.
电容端输出，
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【简答题】如图3—27所示的三相交流电路中，两个对称的星形联结三相负载并联，已知电源相电压为220 V， 。求：(1)各电流表的读数；(2)电源提供的有功功率。
【单选题】16) Which of the following is true about Herzberg's two-factor theory?
A.
Herzberg believed that the factors that led to job satisfaction were the same as those that led to job dissatisfaction.
B.
To motivate people, Herzberg suggested emphasizing the hygiene factors of a job.
C.
Herzberg's theory has influenced how we currently design jobs.
D.
According to Herzberg, removing dissatisfying characteristics from a job will invariably make that job more satisfying and motivating.
【单选题】下列行为中国家应负赔偿责任的是______。
A.
某市公安局的违法拘留行为
B.
某省人民代表大会的立法行为
C.
某市银行的违法划拨存款行为
D.
某市卫生局在法律范围内的裁量行为
【单选题】如图所示三相电路,已知三相电源对称,三个线电流有效值均相等即 I A = I B = I C =10A ,则中性线电流有效值 I N 等于( )。
A.
10A
B.
0A
C.
14.14A
D.
7.32 A
【单选题】Frederick Herzberg's two-factor theory proposes that ________.
A.
intrinsic factors cause job dissatisfaction
B.
extrinsic factors have the maximum effect on job satisfaction
C.
extrinsic factors are associated with job dissatisfaction
D.
intrinsic factors have little effect on job satisfaction
【单选题】Frederick Herzberg's two-factor theory proposes that ________.
A.
intrinsic factors cause job dissatisfaction
B.
extrinsic factors have the maximum effect on job satisfaction
C.
extrinsic factors are associated with job dissatisfaction
D.
intrinsic factors have little effect on job satisfaction
【简答题】(华南理工大学20l0年考研试题)电路如图12—35所示，A、B、C端接三相对称电压源，已知线电压UAB=380V，阻抗Z=50+j50Ω，Z1=100+j100Ω，试求：(1)开关S打开时各线电流IA、IB和IC；(2)开关S闭合时各线电流IA、IB和IC；(3)开关S闭合时两个功率表的读数P1和P2。
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