Mr green is from englang .he _____english in a middle school .he ________some chinese .but he can
题目
Mr green is from englang .he _____english in a middle school .he ________some chinese .but he can
急死我了!谁来做做 — 里的改添什么?
答案
he teaches in a middle school. he can read some chinese but he can not write...
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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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