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單項(xiàng)選擇題

The operation between two fuel injections is called a （）.

A.turning cycle
B.working cycle
C.working hour
D.working stroke

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單項(xiàng)選擇題

The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.

A.to be kept
B.logged
C.changed
D.has remained

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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