单项选择题
A.sailing chart B.general chart C.coast chart D.harbor chart
A chart projection depicting the poles and a small area...
单项选择题A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
A.azimuthal gnomonic projection B.Lambert conformal projection C.transverse Mercator projection D.polyconic projection
A chart position enclosed by a square is a(n)（）.A.fixB....
单项选择题A chart position enclosed by a square is a(n)（）.
A.fix B.estimated position C.dead reckoning position D.running fix
A change of a documented vessel’s name can only be made...
单项选择题A change of a documented vessel’s name can only be made by the（）.
A.American Bureau of Shipping B.Commissioner of Customs C.Treasury Department D.Coast Guard
