新概念英语第二册67、68课答案(非选择题答案)
题目
新概念英语第二册67、68课答案(非选择题答案)
答案
ExerciseLesson 67关键句型C1.I didn't manage to get into town this morning.2.They didn't manage to find the boy who had run away.3.He didn't manage to find a new job.4.I didn't manage to translate the ...
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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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