If diesel oil in this tank is used, the _____ of the oil must not exceed 120 degree℉.
A. viscosity
B. flash point
C. acid value
D. temperature
查看答案
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.
Which factor of the followling affects the fuel's combustion?
A. The setting point.
B. The flash point.
C. The cetane number.
D. The mechanical impurities.
Which factor of the followling affects the engine's maintenance?
A. The calorific value.
B. The sulphur.
C. The cetane number.
D. The setting point.
药动学是研究
A. 药物作用随剂量变化的规律
B. 药物作用随时间变化的规律
C. 药物的体内过程及体内药物浓度随时间变化的规律
D. 药物作用随药物化学结构变化的规律
E. 吸收. 分布. 代谢. 排泄
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