单项选择题
The abbreviation L.W.R.P. on the navigation maps means（）.
A.low water reference plane
B.low winter runoff point
C.least water river plane
D.land wall reference point
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SINGLE UP FORWARD TO HEAD LINE AND SPRING means（）.
A.let go all the lines forward including head line and spring
B.let go the head line and spring only
C.let go all the lines except a head line and a spring
D.let go the head line and spring including all the lines -
单项选择题
SEAWORTHINESS means（）the vessel with her master and crew is herself fit to encounter the perils of the voyage and also that she is fit to carry the cargo safely on that voyage．
A.which
B.where
C.when
D.that -
单项选择题
RESULT OF SEARCH NEGATIVE means（）.
A.the search has found nothing
B.the derelict has been found
C.the derelict has been located
D.the derelict has been sighted
