小学六年级人教版英语pep下册54页原文
题目
小学六年级人教版英语pep下册54页原文
答案
May 14th
Dear Diary,
Today was a good day and a bad day.Here is the dad news.We went to the hotel by taxi.The driver told us many things about Kunming.I was excited about the trip.We went into the hotel but I didn't have my backpack.I ran back to the taxi.The driver was gone.
That afternoon dad and I took a bus to the police station.There were many backpacks there.A policeman showed us three backpacks.One was bigger than mine.One was smaller than mine.The third backpack looked like mine,but it was not.Mine was heavier.I wanted to cry.
The policeman said he would help us.We waited on the chair.Here is the good news.A man came into the police station.He had my backpack.I was so excited to see the taxi driver again.He told me to enjoy my visit to kunming.I can have a good trip now!
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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