Every new supplement to the Sailing Directions （） the previous one．

In Admiralty Sailing Directions，STRIPES is the word used to indicate （）marking.

A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal

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Sailing directions are kept up to date by （）.

A.publications
B.notices to mariners
C.supplements
D.Annual Summary of Admiralty Notices to Mariners

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