按要求改写下面的英语句子.咔咔咔咔咔咔
题目
按要求改写下面的英语句子.咔咔咔咔咔咔
1There are two maps on the wall就two提问._____ _____maps ______ _____on the wall?
2I want to buy two kilos of meat.就two kilos of提问._____ ______ _____ _____you _____?
答案
how many maps are there on the wall?
how much meat do you want (to buy)?
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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