单项选择题
A.A land breeze B.A sea breeze C.A norther D.A prevailing westerly
Under the IALA-A Buoyage System，a green spar buoy with ...
单项选择题Under the IALA-A Buoyage System，a green spar buoy with a triangular topmark would indicate that the buoy（）.
A.should be left to port when heading out to sea B.may be left close aboard on either side C.is on the north side of a point of interest D.is marking the preferred channel
Under normal weather and sea conditions when securing a...
单项选择题Under normal weather and sea conditions when securing a stack of containers with twist locks，lashings are required when the tier exceeds what height? （）
A.Lashings are always required B.One container C.Two containers D.Three containers
To turn over a liferaft that is floating upside down，yo...
单项选择题To turn over a liferaft that is floating upside down，you should pull on the（）.
A.canopy B.manropes C.sea painter D.righting lines
