单项选择题
A.ECDIS B.RADAR C.GPS D.GMDSS
The VDR system is designed to operate（）once it is set u...
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
Information from the stations and installations shall b...
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
The only cylindrical chart projection widely used for n...
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
