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单选题
Whilst the engine is turning, check to see that no water is leaking into the crankcase, scavenge air belt, or from （）.
A
exhaust valves
B
starting valves
C
fuel valves
D
the indicator cocks
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单选题It is abnormal that when the engine is being turned by the turning gear or by hand, （）.A
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no water in the scavenge beltD
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