This morning I _____ into an old friend 发布时间:2017-04-29 15:35 │ 来源:www.tikuol.com 题型:选择题 问题: This morning I _____ into an old friend of mine in the street.[ ]A. jumped B. came C. bumped
题型:选择题 含水率为5%的湿砂100g,其中所含水的质量是:()A.100×5%=5gB.(100-5)×5%=4.75gC.100-100/(1+0.05)=4.76gD.100/(1-0.05)-100=5.26g 查看答案