单项选择题
Splices made in nylon should（）.
A.be long splices only B.have extra tucks taken C.be short splices only D.be around a thimble
单项选择题 Right-laid line should be coiled（）.
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．
