the students did as their teacher told them主句句子完整吗?
题目
the students did as their teacher told them主句句子完整吗?
答案
比如说：
A How did the students do their work
B They did as their teacher told them.
B中,主句句子是对A句的简单回答.简单回答并非不完整,因为在知道语境的情况下不需要再详细回答,所以应该属於完整.
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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．
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