单项选择题

The alternating current generator supplying a load has a voltage drop resulted from the loadWhen the load has a lagging power factor this voltage drop （）.

A.is small
B.may be neglected
C.is useful
D.is considerable

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单项选择题

A.remained
B.still
C.no longer
D.much mere

单项选择题

A.Desired value
B.Set value
C.Measured value
D.Deviation

单项选择题

A.Accommodation heating system
B.Steering gear
C.Boiler control
D.Cargo control