单项选择题
A.to allow port Authorities to board B.allowing port Authorities to board C.to allow port Authorities boarding D.allowing port Authorities to be boarded
Is the pilot ladder all right at this （）A.highB.highlyC...
单项选择题Is the pilot ladder all right at this （）
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
