读读、想想、写写。
题目
读读、想想、写写。
zhang lan is going to hainan.it is hot and sunny.she is going sheop-ping.what is she going to buy?
tom is going to harbin.it is cold and snowy.he is going shopping.what is he going to buy?
答案
拜托,小朋友,我们没有作业本啊,
而且每年都不一样,
抄吧,小学就要好好玩.
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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