怎么把Rose usually washes some clothes on saturday改成一般疑问句和否定句
题目
怎么把Rose usually washes some clothes on saturday改成一般疑问句和否定句
答案
一般疑问句:Does Rose usually wash some clothes on Saturday?
否定句:Rose doesn't usually wash any clothes on Saturday.
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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．
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