• 2022-06-07 问题

    The problem of free riders is most apparent for:() A: private<br/>goods. B: nonrival<br/>private goods. C: public<br/>goods. D: textbooks.

    The problem of free riders is most apparent for:() A: private<br/>goods. B: nonrival<br/>private goods. C: public<br/>goods. D: textbooks.

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