单项选择题
It’s all right to rig the pilot ladder on lee side （）.
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
单项选择题 Is the pilot ladder all right at this （）
单项选择题 Is the pilot boat （） station
单项选择题 Insufficient space between the hull and bottom in shallow water will prevent normal screw currents resulting in （）.
