中学生志愿者的英语作文
题目
中学生志愿者的英语作文
答案
A volunteer
Vera is a middle school student and also a volunteer in the Sunshine Club at school. She wants to do some things to help the people in her town. I think she may help the kids in trouble do their homework. She can spend her Sundays studying with these kids. She also plans to find a part-time job in the hospital. I think she can sing for the patients and read to them. Of course, it’s good for her to give away the old clothes to the poor. In fact, Vera has a lot of things to do to help the people.
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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