畸胎瘤() A.枕骨斜坡 B.桥小脑脚区 C.小脑蚓部 D.松果体区 E.鞍区 发布时间:2017-08-06 01:28 │ 来源:www.tikuol.com 题型:单项选择题 问题: 畸胎瘤()A.枕骨斜坡B.桥小脑脚区C.小脑蚓部D.松果体区E.鞍区
题型:单项选择题 Hay farmers are in a perfectly competitive market. Assume that each acre of land produces 100 bushels of hay. The marginal revenue product of an acre of land is then:()A. (price of hay per bushel)/100.B. price of hay per bushel.C. 100 × (price of hay per bushel). 查看答案