单项选择题
Line throwing equipment should not be operated（）.
A.during a rain storm B.in an explosive atmosphere C.near a lifeboat station D.by other than licensed officers
单项选择题 When launching a lifeboat in the rough sea，the davit gears should be released（）.
单项选择题 Your vessel has lifeboats on both sides. Lifeboat No. 2 is located（）.
单项选择题 Your vessel is equipped with totally enclosed lifeboats. Which statement is TRUE when the boat is enveloped in flames?（）.
