你可能感興趣的試題

A dead reckoning (DR) plot（）.

A.must utilize magnatic courses
B.must take set and drift into account
C.should be replotted hourly
D.should be started each time the vessels position is fixed

單項(xiàng)選擇題

A deck fitting, used to secure line or wire rope, consisting of a single body with two protruding horns is called a（）.

A.bitt
B.bollard
C.capstan
D.cleat