"Do they have the summber holiday or winter holiday "怎样回答?
题目
"Do they have the summber holiday or winter holiday "怎样回答?
答案
They have the summer holiday
或They have the winter holiday.
就和下一句一样
Do you like apple or pear?
I like apple. 或I like pear
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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