Heavy residual fuel oils are heated prior to centrifuging to （）<br>A:reduce fuel weight<br>B:increase specific gravity<br>C:separate fuel from lube oil<br>D:reduce fuel viscosity

Heavy residual fuel oils are heated prior to centrifuging to （）
A:reduce fuel weight
B:increase specific gravity
C:separate fuel from lube oil
D:reduce fuel viscosity

出自：海船船员证

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