搜索 - 科创

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vincentcai 发表于 2014-6-22 13:37 楼主我想确认一下茜素红的乙醇溶液使用的乙醇的浓度我试着溶解了一下从左至右的溶剂分别是95%乙醇 75% ...你这太多了啊[s:14...

本帖最后由超威猴子于 2014-1-27 02:29 编辑 baiwenglong 发表于 2014-1-26 09:54 这个么，TC次级不用共地吧，是磁环反馈的（这个图有两个反馈，好吧）推...

引用 xiaobai152:我觉得对于穷人来说，读到大学还是有些必要的。最起码可以对思维方式有些好处。说不定未来义务教育会普及到高中乃至大学阶段呢？现在的一些所谓“大学”，已经全是“穷人”了，于是大...

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