we bought some flowers for our teachers.改为一般疑问句.肯定否定回答.
题目
we bought some flowers for our teachers.改为一般疑问句.肯定否定回答.
we bought some flowers for our teachers 一般疑问句:肯定否定回答:就划线部分提问:(划线部分为some flowers )
答案
一般疑问句:Did you buy some flowers for your teachers 肯定否定回答:Yes,we did.No,we didn't.就划线部分提问:What did you buy for your teachers?
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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