单项选择题
A 6x19 wire rope would be（）.
A.6 inches in diameter and 19 fathoms long B.6 inches in circumference with 19 strands C.6 strands with 19 wires in each strand D.19 strands with 6 wires in each strand
单项选择题 A 6x12，two-inch wire rope has（）.
单项选择题 A “sheepshank” is used to（）.
单项选择题 （）provide athwartship support for the mast or king posts.
