( )You look _ the new red coat.
题目
( )You look _ the new red coat.
A.different in B.difference in C.difference from D.different from
( )What _ lovely weather!What _ good time we are having!
A.a,a B.a,/ C./,a D./,/
( )How can you stop the fire._.
A.for burning B.from burning C.to burn D.of burning
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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