Do you do ________every day?
题目
Do you do ________every day?
A.eye exercise B.eyes exercise C.morning exercise
2.He needs to buy two new________books(exercise)
3______of us have seen the Great Wall.
A.Every one B.Anyone C.None D.Neither
答案
B
exercise
C
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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