别人向你求助的时候,你应该回答Can I help you?还是What can I do for you?
题目
别人向你求助的时候,你应该回答Can I help you?还是What can I do for you?
答案
求助 I would like to ask you for a favor. Could you do me a favor? I am asking you for some help. Could you help me with this? I hope it wouldn't cause you too much trouble if I ask you to do me a fav...
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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