单项选择题
A charterer is unable to complete the loading of a vessel during the lay days specified in the charter party. Under these circumstances，the（）.
A.vessel operator can collect demurrage B.ship is authorized extra time to discharge the cargo C.charterer must pay dispatch money D.effective period of the charter is extended
单项选择题 A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.
单项选择题 A “wet cargo” refers to（）.
单项选择题 A “strongback” refers to a（）.
