普通石膏粉水比例约为() A.100g:25ml B.100g:35ml C.100 发布时间:2017-04-28 22:10 │ 来源:www.tikuol.com 题型:单项选择题 B1型题 问题: 普通石膏粉水比例约为()A.100g:25mlB.100g:35mlC.100g:45mlD.100g:55mlE.100g:16ml