A.Brown conical tower with white horizontal band in center of light on black pier
B.Red conical tower on brown cylindrical pier
C.White octagonal house on brown cylindrical pier
D.White conical tower，with brown band midway of height
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A.detection，defects
B.defection，defects
C.defects，defection
D.defects，detection
A.cover plate
B.joiner
C.lap strake
D.stealer plate
A.domestics
B.settlers
C.deeps
D.peaks
A.the sizes of casks
B.various lengths of timber
C.structural shapes used in construction
D.viscosities of liquid cargoes
A.butt welds
B.seam welds
C.fillet welds
D.continuous welds
最新試題
The strake on each side of the keel is called a（）.
The Captain’s accommodation comprising rooms certified for his exclusive use may be（）in the measurement of vessel’s tonnage.
Why is it necessary to extend ventilators of gasoline powered vessels to the bilges（）.
What is used to prevent twisting of a towing bridle?（）
Which space cannot be deducted from gross tonnage when calculating net tonnage（）.
For existing ships，（）is not an improvement to safety.
The Vessel’s cargo holds are properly fitted with（）in way of hatches.
What can cause a lack of oxygen in a chain locker（）．
Which space（s）is（are）deducted from gross tonnage to derive net tonnage（）.
The riding pawl is（）.