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
单项选择题 SINGLE UP FORWARD TO HEAD LINE AND SPRING means（）.
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．
单项选择题 RESULT OF SEARCH NEGATIVE means（）.
