Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of ______.
A.marine broadcast Notice to Mariners
B.Weekly Notices to Mariners
C.corrected editions of charts
D.Light Lists
第1题：
Periodic publications notifying changes in，or additions to，previously published navigational data is ________ ．
A.Supplements
B.Annual Summary
C.Navigational Warnings
D.Notice to Mariners
第2题：
Which is a weekly publication advising mariners of important matters affecting navigational safety?
A.Light List
B.Notice to Mariners
C.Coast Pilot
D.Sailing Directions
第3题：
You will be informed about any subtle changes ________ .
A at the first opportunity
B for the first opportunity
C in the first opportunity
D on the first opportunity
第4题：
Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with ______.
A.ship's clock
B.engine movement recorder
C.repeaters
D.navigation lights
第5题：
Admiralty Notices to Mariners，containing important information for the mariners and enabling them to keep their charts and books corrected for the latest information，are issued daily and published in ______.
A.Weekly Editions
B.Quarterly Editions
C.Annual Editions
D.Monthly Editions
第6题：
______ amplify charted detail and contain information needed for safe navigation．
A.Admiralty Sailing Directions
B.Admiralty List of Lights
C.Admiralty List of Signals
D.Admiralty Notices to Mariners
第7题：
Navigational charts are ______ frequent changes，the important one of which are promulgated by Admiralty Notices to Mariners．
A.published with
B.combined with
C.in connection with
D.subject to
第8题：
On discovery of new dangers, of changes or defects in aids to navigation, Masters of vessels should immediately inform ______.
A.their government
B.their port of registry
C.British Government
D.Hydrographer of the Navy of Ministry of Defense of U.K
第9题：
The issue of Notices to Mariners of charts and these aids(Radar beacons)may be delayed until such time as they are assessed to be ______.
A.temporary
B.permanent
C.occasional
D.steady
第10题：
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