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單項選擇題

Fuel is not supplied to the corresponding cylinder due to a failure of （）.

A.the motor
B.the fresh water generator
C.the governor
D.the fuel pump

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單項選擇題

Fuel is delivered into the combustion space by （）.

A.a cooling system
B.a lubricating system
C.an electric system
D.an injection system

單項選擇題

Fuel injection valves should be taken out, cleaned, and lifting checked every （）.

A.two to four months
B.four to six months
C.six to eight months

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