The old man looked as_____as he could at the letter from his son and looked _____(care)
题目
The old man looked as_____as he could at the letter from his son and looked _____(care)
用所给词的正确形式填空
答案
carefully careful
第一个是副词,修饰look at
第二个是形容词,看起来是小心的,判断句
举一反三
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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