As seen from the tow,what should connect the leading ends of both towing bridle legs to the main towing hawser?() A cable clamp。 A fishplate,flounder,or towing plate。 A pad eye。 The towing bitt。
Which one is not the personal safety equipment?() Life jackets。 Survival at Sea manual。 lifeboat。 torch。
下列地点中,属于西半球、南半球的是() 19°W,10°S。 5°W,40°S。 160°W,30°N。 140°W,35°S。
液化石油气在液相燃烧时,呈鲜艳的橙黄色火焰。
液化石油气是一种高碳烃类化合物的混合物。
As it approaches,a typical warm front will bring().