博文
一个IP，24小时内免费下载5篇文献的好地方
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悄悄的送一个福利，超好用哟：
2,784,278 books
52,429,917 articles
for free
- The world's largest scientific articles store. 50,000,000+ articles for free.
突然间发现有这么个咚咚，希望能给大家提供帮助！
有需要的学友么赶快试一试吧,觉得好用就赞起！
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这样大的量已经很不错了！
https://blog.sciencenet.cn/blog-454141-1098302.html
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