判断下列句子是否正确不正确请改正
题目
判断下列句子是否正确不正确请改正
has he found new work yet?
Jack brought the book with him when he left.
Please call me as soon as possible.
he closed the door as quick as he could.
Did you take any photos during your summer vocation?
答案
1.错
2错
3对
4对
5..对
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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