版大辞职,版二当, 如果版二不当,版三当
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30. If the President can no longer serve, who becomes President?
▪ the Vice President
31. If both the President and the Vice President can no longer serve, who
becomes President?
▪ the Speaker of the House http://www.uscis.gov/USCIS/Office%20of%20Citizenship/Citizenshi