The grip of a joint represents the ______.
A.thickness of the connected members
B.diameter of the head
C.entire length of the rivet
D.diameter of the shank
第1题
A.rudder keys
B.rudder palms
C.lifting flanges
D.shoes of the rudder
第2题
A.unwatched
B.surrounded by riprap
C.a minor light
D.constructed on an artificial island
第3题
A.when a new Master assumes command
B.daily,at 0800 local zone time
C.weekly,before 2400 Saturday
D.immediately after assuming the watch
第4题
A.bases
B.gudgeons
C.pintles
D.rudder lugs
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