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單項選擇題

Obviously, for a given fuel oil, its pour point is （） its cloud point.

A.lower than
B.higher than
C.as same as
D.better than

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單項選擇題

The higher the cetane number, （） the ignition quality of the fuel.

A.the worse
B.the better
C.the smaller
D.the greater

單項選擇題

The specific gravity of fuel oil is a （）.

A.absolute value
B.relative value
C.constant value
D.set value

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