你可能感興趣的試題

Navigational marks used for informational or regulatory purposes are（）.

A.solid yellow
B.white with orange geometric shapes
C.red and white vertically-striped
D.green and red horizontally-banded

單項(xiàng)選擇題

Most totally enclosed lifeboats are equipped with which of the following? （）

A.Tanks for the storage of drinking water
B.Ballast tanks to prevent the boat from capsizing
C.A hydraulic start diesel engine
D.Auxiliary mechanical propulsion (Fleming gear)