单项选择题
A.uppermost B.middle C.bottom D.aftermost
All charts and publications should be kept up to date w...
单项选择题All charts and publications should be kept up to date with the（）amendments
A.latest B.update C.last D.up-to-date
In particular,which is not included in the Navigation S...
单项选择题In particular,which is not included in the Navigation System?（）
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
