题目内容

Youwillextinguishafirewhenyouremove（）.

A. oxygen
B. carbondioxide
C. HO
D. H

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Oilfiresarebestextinguishedby（）.

A. cuttingoffthesupplyofoxygen
B. removingthefuel
C. sprayingwithwater
D. addingoxygen

（）areusedforlifesaving.

A. Life-jacketandlifebuoy
B. Freeboard
C. Telemeter
Draft

非精密进近的起始进近航段采用直线航线时，起始与中间进近航段的最大切入角为（）.

A. 45°
B. 70°
C. 90°
D. 120°

Duringafiredrillonavessel,whatactionisrequired？（）

A. Starteachfirepump
B. Launchandrunalifeboat
C. Inspectfirehoses
D. Closeeachfirepump