帮忙写篇英语作文,
题目
帮忙写篇英语作文,
以An awful day off为题,记叙你一次不愉快的假日,50字左右
答案
an awful day offi had an awful day off recently .i had a picnic with my parents.we went to the field.we went there in my dad's car.we put the food and the drinks on the grass.the weather changed.the w...
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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