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單項選擇題

A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.

A.an oily water separator
B.a purifier
C.a centrifugal compressor
D.a clarifier

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單項選擇題

A centrifuge arranged to separate two liquids is known as （）.

A.an oily water separator
B.a purifier
C.a centrifugal compressor
D.a clarifier

單項選擇題

Emulsification of oil will occur when mixed with （）.

A.air
B.black oil
C.water
D.ice cream

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