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【单选题】
三角形联结的对称三相负载,每相电阻为6Ω,感抗为8Ω,由线电压为380V的三相电源供电,则每相负载线电流约为A.
22A
B.
38A
C.
31A
D.
66A
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举一反三
【单选题】Only that factory ____________ yesterday __________ this kind of machines.
A.
we visited; produces
B.
did visited; does it produce
C.
we visited; does it produce
D.
did we visit; produce
【单选题】We all agree that the products of this factory are of better ________.
A.
quality
B.
quantity
C.
principal
D.
identity
【简答题】We will set up a factory in that country, which is rich in (nature) ______resources.
【单选题】This is the factory ________ we visited last Monday.
A.
that
B.
where
C.
in which
D.
the one
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