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單項(xiàng)選擇題

The oil was pumped up in the settle tank such a height that it （）.

A.spilled
B.overflowed
C.sprayed
D.injected

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單項(xiàng)選擇題

The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.

A.acids
B.additives
C.heat
D.gear

單項(xiàng)選擇題

The oil lubricating diesel engine cylinders usually contain additives formulated to impart a high degree of alkalinity to （） the acid conditions.

A.invade
B.provide
C.detergent
D.neutralize

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