All charts and publications should be kept up to date with the（）amendments

单项选择题In particular,which is not included in the Navigation System?（）

A.ECDIS
B.RADAR
C.GPS
D.GMDSS

单项选择题The VDR system is designed to operate（）once it is set up correctly.There is no user interaction.

A.automatically
B.accurately
C.promptly
D.conspicuously

单项选择题Information from the stations and installations shall be appropriatelysharedby（）.

A.all crew members
B.all the watchkeeping personnel
C.all passengers
D.all visitors

单项选择题The only cylindrical chart projection widely used for navigation is the（）.

A.Lambert conformal
B.Mercator
C.aximuthal
D.gnomonic

单项选择题The notice which is based on original information is indicatedby（）nexttothenotice number.

A.a star
B.a dot
C.a dash
D.a circle