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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]分子间作用力和晶体类型的课件在上个课件包里确实已经有了哦,等于付了两次钱,这个确实不太好吧yl87023364 <3-25 20:47>
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 □ [好评]你这个内容上个课件已经有了,已经付过费了,这里有重复出现,又付费了,同个课件付了两次费。jianhui111 <2-28 10:28>
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