The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.<br>A:specific gravity<br>B:viscosity<br>C:S E number<br>D:hydrolytic stability

The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
A:specific gravity
B:viscosity
C:S E number
D:hydrolytic stability

出自：海船船员证

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