- 搜标题
- 搜题干
- 搜选项
单项选择题
Which factor of the followling affects not only the fuel's combustion but also the engine's maintenance?
Which factor of the followling affects not only the fuel's combustion but also the engine's maintenance?
A、The cetane number.
B、The flash point.
C、The viscosity.
D、The setting point.
