The manager was concerned to hear that two of his trusted workers was leaving. 分析句子的结构成分
题目
The manager was concerned to hear that two of his trusted workers was leaving. 分析句子的结构成分
that 在句子里引导什么句子,做什么成分
to hear做什么成分
答案
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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