The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a （）.<br>A:low viscosity index<br>B:high viscosity index<br>C:high neutralization number<br>D:low demulsibility quality

The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a （）.
A:low viscosity index
B:high viscosity index
C:high neutralization number
D:low demulsibility quality

出自：海船船员证

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