英语翻译
题目
英语翻译
Concatenation,meaning "linking together".is the semantic process in which the meaning of a word moves gradually away from its first sense by successive shifts until,in many cases,there is not a sign of connection between the sense that is finally developed and that which the term had at the beginning.这里until是什么用,是否和下面构成搭配.最后两个that的语法功能是否相同,如果最后的是定从,怎么还有一个which在呢
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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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