题目内容
若某人每周用于学习和约会的无差异曲线是围绕最佳组合(20，15)的同心圆，越接近最佳组合，满足越大。假设他每周用于学习25小时、约会3小时，现在请问他愿意每周用30小时学习，8小时约会吗
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为什么说企业最优决策的基本规则是边际成本等于边际收益
自由外汇(Free Foreign Exchange)与记账外汇(Foreign Exchange of Account)
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Although Henry Ford’s name is closely associated with the concept of mass production, he should receive equal credit for introducing labor practices as early as 1913 that would be considered (62) even by today’s standards．Safety (63) were improved, and the work day was (64) to eight hours, compared with the ten-or- twelve-hour day common at the time．In order to accommodate the shorter work day, the (65) factory was converted from tWO to three (66) ． (67) , sick leaves as well as improved medical care for those injured (68) the job were instituted．The Ford Motor Company was one of the first factories to develop a (69) school tO train specialized skilled laborers and an English language school for immigrants．Some (70) were even made tO hire the handicapped and provide jobs for former convicts． The most widely acclaimed (71) was the five-dollar-a-day minimum wage that was (72) in order to recruit and (73) the best mechanics and to (74) the growth of labor unions．Ford explained the new wage policy in (75) of efficiency and profit sharing．He also mentioned the fact that his employees would be able to purchase the automobiles that they produced——in effect (76) a market for the product．In order to qualify for the minimum wage, an employee had to establish a decent home and (77) good personal habits, including sobriety(节制), thriftiness, industriousness, and dependability． (78) some criticism was directed at Ford for involving himself too much in the (79) lives of his employees, there can be no doubt that, at a time when immigrants were being taken (80) of in frightful ways, Henry Ford was helping many people to (81) themselves in America．
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