七年级上册英语:去水果店里买东西的对话
题目
七年级上册英语:去水果店里买东西的对话
答案
A 代表店主B代表顾客A：Is there anything I can do for you?B:Oh,yes.I am looking for some fruit to visit my friend.He is in hospital.A:Maybe you can think about buying him some apples.B:It is really a g...
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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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