英语一小题填空 Mary:Hello.__1___?Mary speaking here.Lucy:Hello,Mary.This is Lucy.Mary:Lucy,
题目
英语一小题填空 Mary:Hello.__1___?Mary speaking here.Lucy:Hello,Mary.This is Lucy.Mary:Lucy,
答案
Mary: Hello.__1___? Mary speaking here.Lucy: Hello, Mary. This is Lucy.Mary: Lucy, our headteacher says you are not feeling so well. How are you now ,Lucy?___2__?Lucy: I’ve got a bad cold and a...
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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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