Ober征阳性提示:A.髋关节脱位 B.阔筋膜挛缩 C.梨状肌病变 D.内收肌病变 发布时间:2018-07-28 17:43 │ 来源:www.tikuol.com 题型:单项选择题 问题: Ober征阳性提示:A.髋关节脱位B.阔筋膜挛缩C.梨状肌病变D.内收肌病变E.臀中肌病变
题型:单项选择题 Which of the following is NOT a condition of a perfectly competitive market()A. Sellers make economic profits.B. Firms face elastic demand curves.C. Individual sellers each have a small share of the market. 查看答案