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【简答题】
ba e n. 战役;战斗
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皮皮学刷刷变学霸
举一反三
【单选题】In the sinusoidal steady-state circuit, , the complex power is:
A.
(20+j20)VA
B.
(20-j20)VA
C.
(10+j10)VA
D.
(10-j10)VA
【简答题】判断下图波形是连续时间信号还是离散时间信号,若是离散时间信号是否为数字信号。
【简答题】我国第一辆载货汽车是( )。
【单选题】I was awfully tired when I got home from work, but a half-hour nap ______ me.
A.
revived
B.
released
C.
relieved
D.
recovered
【单选题】I was awfully tired when i got home from work, but a half hour nap me.
A.
revived
B.
relieved
C.
released
D.
recovered
【判断题】According to the different frequency selection network, the sinusoidal oscillator can be divided into RC sinusoidal oscillator, LC sinusoidal oscillator and quartz crystal oscillator.( )
A.
正确
B.
错误
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