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

As per the standing orders,you should carry out all the following operations except()upon having received words that a person has fallen overboard.

A.call the Master immediately
B.stop the engines
C.sound the “Man Overboard” signal of 3 prolonged blasts on the whistle and 3 prolonged blasts on the general alarm
D.prepare,as many as possible,rescue facilities,including warm clothes

微信掃碼免費(fèi)搜題