单项选择题
Which of the following fuel oil characteristics establishes the danger point when transferring, pumping, and firing procedures are concerned?（）
A.Fire point B.Flash point C.Specific gravity D.viscosity
单项选择题 Bunkering shall be terminated if there is a （）
单项选择题 Approximately what percent of tank space should be left for expansion of oil due to possible temperature increase?（）
单项选择题 To avoid excessive surge pressure when bunkering, you should （）
