求英语选秀6the earth is becoming warmer原文
题目
求英语选秀6the earth is becoming warmer原文
答案
During the 20th century the temperature of the earth rose about one degree Fahrenheit.That probably does not seem much to you or me,but it is a rapid increase when compared to other natural changes.So...
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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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