求一份英语的值日报告
题目
求一份英语的值日报告
不要太长
答案
I am on duty today.I have a lot of work to do:cleaning the blackboard and the classroom,helping my classmates to collect the papers and hand in.This afternoon,I'll take part in a discussion about how to learn English well and make notes ,and then report it to the teacher.That's all.Thank you!
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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