找错误,下列各题中均有一处错误,请将她找出来并改正
题目
找错误,下列各题中均有一处错误,请将她找出来并改正
1 you donot need go to school today,because it is saturday
2how many bags do you want?two hundreds?
3henry goes to work by his car every day
4how long is it from the teaching building to the front school gate?
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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