1.He went to see the man who was in hospital yesterday.-________.
题目
1.He went to see the man who was in hospital yesterday.-________.
A.We did so B.We so did C.So we did D.So did we (顺便说一下原因）
答案
D So did we 我们也去了. 倒装表示“也”
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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