She will tell us why she feels so strongly that each of us has a role____in making the earth a b...
题目
She will tell us why she feels so strongly that each of us has a role____in making the earth a b...
She will tell us why she feels so strongly that each of us has a role____in making the earth a better place to live.A.to have played B.to play C.to be played D.to be playing 请给出详细分析!
答案
B.to play
我们将扮演的角色.
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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