Forty-five fathoms is marked on the anchor chain by().
A:one turn of wire on the first stud from each side of the detachable link
B:two turns of wire on the second stud from each side of the detachable link
C:three turns of wire on the third stud from each side of the detachable link
D:four turns of wire on the fourth stud from each side of the detachable link
出自:海船船员证