often划线的就划线部分提问怎样回答?
题目
often划线的就划线部分提问怎样回答?
这句话是 Lin Tao often helps me with my Chinese.(就often画线
了,其余的都没画线)
________ ________ ________Lin Tao help you with yur Chinese?
答案
how often does Lin Tao help you with yur Chinese?
how often 提问频率
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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