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(xiàng)選擇題

A fishing vessel is approaching a vessel not under command. Which statement is TRUE? ()

A.The fishing vessel must keep clear of the vessel not under command
B.If the vessel not under command is a power-driven vessel,she must keep clear of the fishing vessel
C.They must exchange whistle signals
D.Both vessels are required to take action to stay clear of each other

微信掃碼免費(fèi)搜題