She rented her economics and statistics textbooks for about $20 each.

她以每本20美元的价格出租了她的经济学和统计学课本。

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Another study, published in the Review of Economics and Statistics, reports that the effort put forth by parents is extremely important.

另一项发表在《经济学与统计学评论》上的研究报告称，父母所付出的努力是十分重要的。

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C: I completed business administration and management, sales management, economics, accounting, statistics, business statistics, and business English.

C：我修完了工商行政管理、营销管理、经济学、会计学、商业统计、以及商业英语。

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