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【简答题】
完成两个多位数值比较大小的逻辑电路称 。
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举一反三
【单选题】下列关于直流电机的电动势的表达式正确的是______。(其中,CE--电机结构常数;Ia--电枢电流;T--电机电磁转矩;Φ--电机主磁极磁通;n--电机转速)
A.
E=CETΦ
B.
E=CEIaΦ
C.
E=CEnΦ
D.
E=CEnIa
【单选题】______, he couldn’t get the door open.
A.
Might as he try
B.
As he might try
C.
Try as might try
D.
Try as he might
【单选题】We don't know what the surface of Venus might ______.
A.
look as
B.
look like
C.
look over
D.
look about
【单选题】“I her a long time ago,” he doubted, “She doesn’t look at all familiar.”
A.
might have met
B.
should have met
C.
might meet
D.
should meet
【单选题】下列关于直流电机的电动势的表达式正确的是（）。（其中，KE--电机结构常数；Ia--电枢电流；T--电机电磁转矩；Φ--电机主磁极磁通；n--电机转速）
A.
E=KETΦ
B.
E=KEIaΦ
C.
E=KEnΦ
D.
E=KEnIa
【单选题】_______ he’d come to the door, he thought he might as well go in with the others to have a look.
A.
Now that
B.
However
C.
Although
D.
If
【单选题】If he had worked hard____.
A.
he might have passed the final exam
B.
he might pass the final exam
C.
he has passed the final exam
D.
he passed the final exam
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