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Many navigational warnings are of a temporary nature, but others remain in force for several months or may be succeeded by ___ . A. Notices to Mariners B. Sailing Directions C. List of Lights and Signals D. Guide to Port Entries

Aa

Bb

Cc

Dd

正确答案:A (备注:此答案有误)

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  • 单选题

    Many navigational warnings are of a temporary nature, but others remain in force for several months or may be succeeded by ___ .A. Notices to Mariners B. Sailing DirectionsC. List of Lights and Signals D. Guide to Port Entries

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