A.first edition
B.new edition
C.revised edition
D.reprint
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A.Notices to Mariners
B.Mariner's handbook
C.Sailing Directions
D.Guide to Port Entry
A.lower low water
B.high water
C.low water
D.sea level
A.Admiralty Notices to Mariners
B.Mariner's Handbook
C.Catalogue
D.Sailing Directions
A.referred to
B.appreciated
C.met with
D.concerned
A.considered
B.insured
C.relied upon
D.suspected
最新試題
Navigational warnings are published according to（）.
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
On notification by Admiralty Notice to Mariners that a new edition of one of the books，or a new supplement to one，has been published，it should be obtained（）.
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.
Steam smoke will occur when（）.
In revised editions of Admiralty charts the（）are corrected first．
Which is a weekly publication advising mariners of important matters affecting navigational safety（）.
For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
Weekly NMs are available without subscription from appointed（）.
The height of a tide can be increased by（）.