单项选择题
The term of landfall means（）.
A.land first sighted when vessel approaching from seaward B.land last sighted when vessel leaving from a port C.in sight of one another when vessel underway D.in sight of an island during a ship on her voyage
单项选择题 Throwing overboard of goods in order to lighten the vessel or improve its stability in case of an emergency defines（）.
单项选择题 To evacuate a vessel from crew and passengers following a distress means（）.
单项选择题 To increase the distance to the vessel ahead by reducing one’s own speed means（）.
