正常!钱上不用厚道。
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https://www.sec.gov/Archives/edgar/data/92380/000120919120023268/xslF345X03/doc4.xml
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https://www.sec.gov/Archives/edgar/data/27904/000120919120023250/xslF345X03/doc4.xml
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https://finance.yahoo.com/news/warren-buffett-i-wont-be-selling-airline-stocks-142849303.html