单项选择题
A design modification of an anchor chain which prevents kinking is the（）.
A.detachable link B.stud link C.Kenter link D.connecting link
单项选择题 A deck fitting，used to secure line or wire rope，consisting of a single body with two protruding horns is called a（）.
单项选择题 A contra-guide is a type of（）.
单项选择题 A common means of connecting shots of anchor chain in the field is to use a（）.
