薄壁圆管的外径为52mm,内径为48mm,若圆管两端受0.6kN·m的扭转力偶矩的作 发布时间:2018-10-16 04:46 │ 来源:www.tikuol.com 题型:单项选择题 问题: 薄壁圆管的外径为52mm,内径为48mm,若圆管两端受0.6kN·m的扭转力偶矩的作用,则横截面上的最大剪应力为()MPa。A.92.8B.82.9C.79.4D.70.6
题型:单项选择题 An analyst determines that four stocks have the following characteristics:If the risk-free rate is 4 percent and the expected return on the market is 10 percent, which of the following statements is FALSE()A. Stock A is overvalued.B. Stock D is overvalued.C. Stock B is properly valuced and Stock C is undervalued. 查看答案
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