Which of the following methods might be used as the treatment on emulsified oil?（）<br>A:gravity separation<br>B:centrifuge<br>C:Cyclone<br>D:Cross-flow membrane filtration

Which of the following methods might be used as the treatment on emulsified oil?（）
A:gravity separation
B:centrifuge
C:Cyclone
D:Cross-flow membrane filtration

出自：海船船员证

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