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（）.
A.bitt
B.bollard
C.capstan
D.cleat
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相关考题
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单项选择题
A deepwell pump is a type of（）.
A.screw pump
B.centrifugal pump
C.eductor
D.gear pump -
单项选择题
A definite advantage of using water as a fire extiguishing agent is its characteristic of（）.
A.alternate expansion and contraction as water in a liquid state becomes a vapor
B.absorption of smoke and gases as water is converted from a liquid to a vapor
C.rapid contraction as water is converted from a liquid to a vapor
D.rapid expansion as water absorbs heat and changes to steam -
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.connection link
