你可能感興趣的試題

單項(xiàng)選擇題

Most lifeboats are equipped with（）.

A.unbalanced rudders
B.balanced rudders
C.contraguide rudders
D.straight rudders

單項(xiàng)選擇題

Most covered lifeboats will right themselves after capsizing if the（）.

A.passengers are strapped to their seats
B.fuel tanks are not less than half full
C.sea anchor is deployed to windward
D.lower ballast tanks are filled with water