99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

When evacuating a seaman by helicopter lift,which course should the ship take?()

A.Downwind so that the apparent wind is close to nil
B.A course that will keep a free flow of air,clear of smoke,over the hoist area
C.A course that will have the hoist area in the lee of the superstructure
D.With the wind dead ahead because the helicopter is more maneuverable when going into the wind

微信掃碼免費搜題