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你可以去找老汪,让他在老板面前为你说句好话 He must needs go whom [that] the devil drives.(=Needs must when the devil drives.)情势所迫,只好如此.The manager said that he would like us to go to Hai Nan an...
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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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