In Bahrain,Mina Sulman Pilots board at ______ NAVAREA I of the world-wide navigation warning service.
A. Sitra Beacon
B. ASRY Beacon
C. Alba Beacon
D. Bapco Beacon
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The major tidal streams for selected waters of North West Europe are shown in diagrammatic
Admiralty Tidal Stream Atlases
B. Admiralty Tidal Stream Atlases
C. Admiralty Manual of Tides(NP120)
D. Admiralty Tidal Handbooks(NP122 1-3)
The information on ______ is not likely found in The Mariners Handbook(NP100).
A. IALA Buoyage system
B. hydrography,topography,navigational aids and their services
C. basic meteorology and navigation in ice and hazards and restrictions to navigation
D. information on tides,currents and characteristics of the sea
地下连续墙槽段采用工字钢接头时,焊接防绕流铁皮的目的是止水挡土。()