单项选择题
Right-laid line should be coiled（）.
A.clockwise B.counterclockwise C.either clockwise or counterclockwise D.on a reel
单项选择题 On small sailing vessels，the PRIMARY reason for using nylon in a combination chain-nylon anchor line is to（）.
单项选择题 It’s no good（）down by head．
单项选择题 How should you try to right a capsized small sailing vessel?（）
