有个英语语法问题请教（万望解答,感激不尽）
题目
有个英语语法问题请教（万望解答,感激不尽）
1.Tom had been rushed to the hospital after being found lying in the snow near her home.请问句中being和lying为什么是-ing形态?
2.The person knew my parents and of my association with Tom.
为什么要加那个of?
答案
1.Tom had been rushed to the hospital after being found lying in the snow near her home.请问句中being和lying为什么是-ing形态?答：after后面如果跟非谓语动词,我们只能把after看作介词,不能看作连词,非谓语动...
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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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