新概念英语一册,54课的课后习题答案!
题目
新概念英语一册,54课的课后习题答案!
答案
A1 Does the sun set late?The sun doesn't set late.2 Does he like ice cream?He doesn't like ice cream.3 Does Mrs.Jones want a biscuit?She doesn't want a biscuit.4 Does Jim come from England?He doesn't ...
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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