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關注:1
2013-05-23 12:21
求翻譯:Public goods,such as defense or basic scientific research, are goods where provision of the good to some individuals cannot occur without providing the same level of benefits free of charge to other individuals是什么意思?![]() ![]() Public goods,such as defense or basic scientific research, are goods where provision of the good to some individuals cannot occur without providing the same level of benefits free of charge to other individuals
問題補充: |
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