英语单选题求解析!
题目
英语单选题求解析!
1、there are no secrets to success,it is the___of preparation,hard work and learning from failure.
A.Survey B.Result C.Chance D.Dream.
2.Do you know guojingming____movie Tiny Times 1.0 was on at the end of July,2013?
A.who B.that.C.whose D.which
答案
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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