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【单选题】
在电感XL=20Ω的纯电感电路两端,加上正弦交流电压u=20sin(100ωt+30°)V,则通过它的瞬时电流为( )A.
i=1.414sin（100ωt-60°）A
B.
i=sin（100ωt-60°）A
C.
i=1.414sin（100ωt+30°）A
D.
i=sin（100ωt+30°）A
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反馈参考答案：
举一反三
【单选题】By saying 'I' m just starting to live,' Tom means that ______.
A.
he is just beginning to understand the real meaning of life
B.
he is just beginning to enjoy life as a loving husband
C.
he lived an unhappy life before and is now starting to change
D.
he is beginning to feel regret for what he did to his wife before
【单选题】Do you know the___of the saying I just quoted?
A.
source
B.
resource
C.
course
D.
cause
【单选题】采用非均匀量化可以使得
A.
小信号SNR减小，大信号SNR增加
B.
小信号SNR增加，大信号SNR减小
C.
小信号SNR减小，大信号SNR减小
D.
小信号SNR增加，大信号SNR增加
【单选题】Do you know the _________ of the saying I just quoted?
A.
resource
B.
source
C.
course
D.
cause
【单选题】Do you know the of the saying I just quoted?
A.
resource
B.
cause
C.
course
D.
source
【简答题】Why does Bob make this choice?
【单选题】To go to the ball with just a flower is ___, “I’m poor!”
A.
say
B.
saying
C.
to say
D.
to saying
【单选题】Rudolph just stood there，saying nothing．_________ he was a man of few words．
A.
Particularly
B.
Approximately
C.
Surprisingly
D.
Apparently
【简答题】How does Bob get to school?
相关题目：
【单选题】采用非均匀量化可以使得
A.
小信号SNR减小，大信号SNR增加
B.
小信号SNR增加，大信号SNR减小
C.
小信号SNR减小，大信号SNR减小
D.
小信号SNR增加，大信号SNR增加
【单选题】Do you know the _________ of the saying I just quoted?
A.
resource
B.
source
C.
course
D.
cause
参考解析：
知识点：
题目纠错 0
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