要英语绕口令,一篇的,10句,少儿!急用!
题目
要英语绕口令,一篇的,10句,少儿!急用!
青少年专用!
答案
Bill had a billboard.Bill also had a board bill.The board bill bored Bill,So Bill sold his billboardAnd paid his board bill.Then the board billNo longer bored Bill,But though he had no board bill,Neit...
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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