英语选择题,要说明选择理由
题目
英语选择题,要说明选择理由
1. —Is that your eraser? —No, ______ is red. It must be ________.
A. my , somebody else B. mine , somebody else’s
C. mine , someone else D. my , someone else’s
2. The contest ________ during Beijing Olympic Games.
A. will be held B. was held C. will be had D. hold
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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