甲乙两个瓶子装的酒精溶液的体积比是25甲瓶中的酒精与水的体积比是31乙 ...
甲乙两个瓶子装的酒精溶液的体积比是25甲瓶中的酒精与水的体积比是31乙 ...: 甲乙两个瓶子装的酒精溶液的体积比是2:5，甲瓶中的酒精与水的体积比是3:1，乙瓶中的酒精与水的体积比是设：甲瓶中溶液的体积为2k,则乙瓶中溶液的体积为5k,混合后总体积 ...
Chinese spend more on diapers and Colgate despite economic woes
... economy. China's economic slump after the pandemic has weighed on sales at consumer packaged goods companies, who had targeted the world's second ... View article...