40字英语作文:My favourite season
题目
40字英语作文:My favourite season
答案
My favorite season is autumn.Because it is cool and windy but it isn't hot or cold in autumn.Autumn is a harvest seaon.The most exciting still can eat many tasty fruits.Such as:oranges,mangos,bananas,...
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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