主题:上传<仪器分析教程>

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liu820422
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tututu
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sign~ took a while to get here, yet can't download.  I have to say, here, there are a lot regulations.
liu820422
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原文由 tututu 发表:
sign~ took a while to get here, yet can't download.  I have to say, here, there are a lot regulations.


我刚刚下载试过,怎么不能下载了?应该是there are  a lot of  regulations,or there are lots of  regulations.传点东西共享,有错吗?
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