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『资料评论』  点击这里发表或查看更多评论 好评率:100.00% 差评率:-
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 □ [好评]gqr822gqr <8-26 15:50>
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 □ [好评]spf1234 <5-1 17:19>
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 □ 第一个课件:有机物的分类,简介,第二个课件:命名。第三个课件完全是充数的,讲蒸馏萃取重结晶。第四个:核磁共振,质谱法。第五个:同分异构。总的来说除了第三个,其他四个还好,就是太贵了。xim084 <1-17 21:50>
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