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單項選擇題

The data to be recorded on this sheet （） the performance of the engine.

A.makes the experts to judge
B.enables the experts to judge
C.make the experts judging
D.enable the experts to judge

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單項選擇題

To assist separation of low viscosity oils steam coils or electric heaters are fitted （） of the oily water separator.

A.in entrance
B.in exit
C.in the upper part
D.on the outside

單項選擇題

The most suitable pump for oily water separator feed duties is （）.

A.a reciprocating pump
B.a vane pump
C.a centrifugal pump
D.a triple screw pump

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