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

<ruby id="nupc0"><output id="nupc0"></output></ruby>

單項選擇題

I’m on fire and have dangerous cargo on board. The most urgent assistance (最緊急的援助)in this case would be（） .

A.lifeboat
B.medicine
C.firefighting
D.lifesaving

你可能感興趣的試題

單項選擇題

（）(停頓) for a while when the boat leaves the surface.

A.Halting
B.Halt
C.Adjust
D.Heave

單項選擇題

（）(所有船員) must know the locations as well as the operations of the life-saving and fire-fighting appliances.

A. All officers
B. All engineers
C. All the crew
D. AB and C

<ruby id="g2avr"><xmp id="g2avr"></xmp></ruby>