单项选择题
A.at which a liquid will give off inflammable vapors
B.at which a liquid will burn steadily
C.at which a liquid will explode
D.that a liquid must reach before it will flow readily
单项选择题 The flash point of a petroleum product is an indication of its（）
单项选择题 The Garbage Record Book, as a part of the ship’s official logbook, shall be kept on board and preserved for a period of （）
单项选择题 One of the major features of the STCW95 is the adoption of a new STCW Code, to which many have been transferred（）