单项选择题
What is the requirement of a navigator who used an ECDIS?（）
A.Good navigational knowledge and a professional job attitude
B.Good computer knowledge
C.Good system knowledge
D.Nothing special
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相关考题
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单项选择题
If the rotation for this vessel is Felixstowe,Antwerp,Le Havre,Hamburg and Rotterdam.The container for Rotterdam is right at the（）of the heap.
A.uppermost
B.middle
C.bottom
D.aftermost -
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 -
单项选择题
In particular,which is not included in the Navigation System?（）
A.ECDIS
B.RADAR
C.GPS
D.GMDSS
