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單項選擇題

The viscosity regulator controls the fuel oil temperature （） provide oil at the correct viscosity for combustion.

A.in order that
B.because of
C.in order to
D.owing to

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單項選擇題

The viscosity regulator controls the （） of the fuel oil in order to provide the oil at the correct viscosity for combustion.

A.temperature
B.pumping rate
C.pressure
D.heat

單項選擇題

The viscosity regulator controls （） in order to provide oil at the correct viscosity for combustion.

A.the engines speed
B.the engines load
C.the fuel oil temperature
D.the fuel oil flow

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