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單項選擇題

If （） are taken at regular intervals, any unequal distribution of load will be easily found out.

A.indicator diagrams
B.nomo-gram
C.temperature readings
D.pressure readings

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單項選擇題

If the action of the engine indicates that some of the cylinders are not firing, the ones affected may be determined by watching （）.

A.the bad smoke
B.the smoky exhaust
C.the exhaust temperature
D.the peak pressure

單項選擇題

The injection may be delayed, （）the pumps are in good order, if the fuel lines to the injection valves have not been cleared of air.

A.because
B.though
C.since
D.until

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