题目: 如果等式(2a-1)a+2=1,则a的值为______. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0503/001cfba1a208cc5ef506f72fae9de126.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:单项选择题 An internally efficient security market is most accurately characterized as a market in which:()A. the cost of a transaction is minimized.B. an asset’s price reflects all available information about the asset.C. prices do not change much from one transaction to the next in the absence of new information. 查看答案