A.the port state
B.the shipping company
C.the coastal state
D.the flag state
第1题
A.can be recovered
B.is only supplied to cylinders
C.only feeds the main bearing
D.is a kind of detergent
第2题
A.crankshaft revolution
B.mechanical cycle of operation
C.period of two combustion cycles
D.cycle of two events
第3题
A.Should the engine stop without apparent reason
B.The engine should stop without apparent reason
C.The engine stops without apparent reason
D.The engine is stopped without apparent reason
第4题
A.Condenser and thermal expansion valve
B.King and solenoid valves
C.Compressor and thermal expansion valve
D.Condenser and solenoid valve
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