it is difficult for him to swallow ahything dry because he has little appetite.的翻译
题目
it is difficult for him to swallow ahything dry because he has little appetite.的翻译
答案
因为他没有胃口,所以很难咽下任何太干的东西.
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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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