A:____?B:I went to the park yesterday .2 A:____?B:We read books last Tuesday.
题目
A:____?B:I went to the park yesterday .2 A:____?B:We read books last Tuesday.
A:____?B:I went to Hainan by plane.(I went by plane.)
A:____?B:I am going to plant trees this weekend.
A:What did Chen Jie do last weekend ( 去划船)B:____.
答案
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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