用英文介绍造纸术
题目
用英文介绍造纸术
用英语介绍造纸术用英语介绍造纸术用英语介绍造纸术用英语介绍造纸术用英语介绍造纸术
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PapermakingPapermaking is the process of making paper,a substance which is used ubiquitously today for writing and packaging.In papermaking a dilute suspension of fibers in water is drained through a ...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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