单项选择题
A.high B.highly C.heigh D.height
Is the pilot boat （） stationA.inB.atC.withD.on
单项选择题Is the pilot boat （） station
A.in B.at C.with D.on
Insufficient space between the hull and bottom in shall...
单项选择题Insufficient space between the hull and bottom in shallow water will prevent normal screw currents resulting in （）.
A.waste of power B.sudden sheering to either side C.sluggish rudder response D.All of the above
Information on the operating times and characteristics ...
单项选择题Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）
A.List of Lights B.Coast Pilot C.Sailing Directions D.List of Radiobeacons
