西安英文简介
题目
西安英文简介
100词左右就可以
答案
Ancient Capital of China
Xi'an is one of the oldest cities in the world with a vivid and rich history and culture.It is not only the birthplace of the Chinese Nation,but also the birthplace of human civilization in Asia and the cultural center of prehistoric civilization.As such,Xi'an has a wealth of historical sites and relics to visit and see and is a great place to introduce yourself to Chinese history.
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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