a little boy,_____ran into the house.A.missing two of his teeth B.with two of his teeth missing
题目
a little boy,_____ran into the house.A.missing two of his teeth B.with two of his teeth missing
求详解
答案
意义：一个缺两颗牙的小男孩跑进了房子 .、
选B.用with组成的独立主格结构,表示伴随状态.
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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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