A.10 B.15 C.20 D.25
A.淺水效應(yīng)較大,岸壁效應(yīng)較小 B.淺水效應(yīng)較大,岸壁效應(yīng)較大 C.淺水效應(yīng)較小,岸壁效應(yīng)較小 D.淺水效應(yīng)較小,岸壁效應(yīng)較大
A.鋼絲纜 B.纖維繩 C.白棕繩 D.任意纜繩