He walked to the sign and _____ it up and went into the office with it.
题目
He walked to the sign and _____ it up and went into the office with it.
A.picked B.geve C.looked D.put
答案
picked
按原语句,他走到标志前捡起它,然后带着它走进了办公室.
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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