1who will look after the children 变成被态 By whom ..2where did you find your pencil .where...
题目
1who will look after the children 变成被态 By whom ..2where did you find your pencil .where...
1who will look after the children 变成被态 By whom ..2where did you find your pencil .where...3i saw her read a story book 4 the story made us story 5 they have painted their new house 6people keep sheep for producing wool
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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