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單項(xiàng)選擇題

When the follower is on the base circle of the cam, the pump plunger is at the （） of its stroke.

A.top
B.middle
C.bottom
D.any of the above

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單項(xiàng)選擇題

When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.

A.compressing
B.interposing
C.imposing
D.pounding

單項(xiàng)選擇題

When a crankshaft （） outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.

A.has to be handled
B.may be handled
C.has being handled
D.will be handling