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__is sea area A2.

发布于 2021-04-18 17:39:48

【单选题】
A An area within coverage of INMARSAT geostationary satellites
B An area, excluding sea area A1, within coverage of MF coastal radio stations in which continuous DSC alerting is available
C An area within coverage of VHF coast radio stations in which continuous DSC alerting is available
D The extreme polar regions

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zt860821 2023-04-18

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这家伙很懒，什么也没写！

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