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【简答题】
下列不属于既往史的是( )
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举一反三
【简答题】电路如图所示,试用电源模型等效变换方法求图(a)中的电压U,则U= ________V。
【单选题】选出本句中的定语:The man downstairs was trying to sleep.
A.
man
B.
downstairs
C.
trying
D.
sleep
【单选题】如图所示电路中,已知直流电压U1=3V,二极管的正向压降为0.7V,试求U0.
A.
3V
B.
1.5V
C.
0V
D.
0.7V
【单选题】挑出句中的定语:The man downstairs was trying to sleep.
A.
man
B.
downstairs
C.
trying
D.
sleep
【单选题】选出句中的定语。 The man downstairs was trying to sleep.
A.
downstairs
B.
was
C.
trying to
D.
sleep
【单选题】Father is a typical referee in children disputes.
A.
Y
B.
N
C.
NG
【单选题】如图所示电路中,已知直流电压U1=3V,二极管的正向压降为0.7V,试求U0.
A.
3V
B.
1.5V
C.
0V
D.
0.7V
【单选题】挑出下列句中的定语。 The man downstairs was trying to sleep.
A.
The man
B.
downstairs
C.
was
D.
trying to sleep
【简答题】定语The man downstairs was trying to sleep.
【单选题】找出句中定语 The man downstairs was trying to sleep.
A.
the man
B.
downstairs