HOW开头的句子,不少于20个,意思可以是一样,但句子不能重复
题目
HOW开头的句子,不少于20个,意思可以是一样,但句子不能重复
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how do you do?how are you?how is he today?how old are you?how old is she?how often do you go to swim?how often do you clean your room?how many dogs are there?how much is it?how much money do you have?...
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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