If a hydraulic pump is overheating, the cause may be （）.

A.excessive internal leakage in the pump
B.low discharge pressure and fluid flow
C.excessive fluid level in the hydraulic reservoir
D.operation of the pump at 100% efficiency

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單項(xiàng)選擇題
The motor for the fresh water pump （）.
A.need to repair
B.need to be repaired
C.needs to repair
D.needs repairing
單項(xiàng)選擇題
I remember （）the oil separator the day before yesterday But it failed again.
A.to repair
B.to be repaired
C.repairing
D.being repaired

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If a hydraulic pump is overheating, the cause may be （）.

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The motor for the fresh water pump （）.

I remember （）the oil separator the day before yesterday But it failed again.