单项选择题
Approximately what percent of tank space should be left for expansion of oil due to possible temperature increase?（）
A.1% to 3% B.1% to 2% C.4% D.2% to 4%
单项选择题 To avoid excessive surge pressure when bunkering, you should （）
单项选择题 When is the most critical time of bunkering in regards to oil pollution?（）
单项选择题 As a watch officer when bunkering, which of the following does require his individual attention?（）
