wait we have few vegetables for dinner.could you go and buy some?yes sure.but I don"t have
题目
wait we have few vegetables for dinner.could you go and buy some?yes sure.but I don"t have
any
答案
A：等等,我们只有一点点菜做晚饭而已了,你可以去买点回来吗?
B：没问题.但是我没钱哦.
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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