A.2~3,0.5~1 B.3~4,0.65~1 C.3~5,0.75~1.5 D.6~7,0.5~1
錨泊中的船舶在風流相反時,其錨鏈的方向取決于:() Ⅰ、風力Ⅱ、流速Ⅲ、船水線以上受風面積Ⅳ、錨地底質(zhì)
A.Ⅰ~Ⅳ B.Ⅰ、Ⅱ、Ⅳ C.Ⅰ、Ⅱ、Ⅲ D.Ⅰ、Ⅲ、Ⅳ
A.2L+(60~90)m B.L+(60~90)m C.L+45m D.2L+45m