单项选择题
A long splice in a line（）.
A.is used in running rigging
B.doubles the size of the line
C.is only used on fiber rope
D.is very weak
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A.fire pumps
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（） is not the information necessary for the master to obtain guidance as to the stability of the ship.
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B.instructions concerning the operation of cross-flooding arrangements
C.the signals or lights being exhibited or sounded
D.all other data and aids which might be necessary to maintain stability after damage
