Helen Keller英语作文
题目
Helen Keller英语作文
不用太多,5句就行.
答案
Helen Keller was born in 1880 and died in 1968.She was one of the most famous person in the world.While she was still at college she wrote ‘The Story of My Life’.This was very successful.In 1932 she became a vice-president of the Royal National Institute for the Blind in the United Kingdom.
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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