一篇介绍家庭的英语作文
题目
一篇介绍家庭的英语作文
40词左右.
答案
My familyI have a happy family. There are three people in my family, my mom, dad and me. My father is a math teacher, and he teachs in a middle school near my home. He doesn’t like going to movies an...
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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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