根据提示完成句子①______________(read a newspaper) now.②She is a ________.she works in a hospital
题目
根据提示完成句子①______________(read a newspaper) now.②She is a ________.she works in a hospital
③Is she active?No,_____.
答案
She is reading a newspaper now.
She is a doctor.She works in a hospital.
Is she active?No,she isn't.
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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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