七年级英语上册p11 2b的对话
题目
七年级英语上册p11 2b的对话
答案
My FamilyHi,I'm Jenny.Here are two nice photos of my family.My grandfather and grandmother are in the first photo.These are my parents ,Alan and Mary .In the next picture are my brothers,Bob and Eric ...
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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