八年级上册英语第一单元B部分听力改写
题目
八年级上册英语第一单元B部分听力改写
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A:I remember your frist day of school .You looked very nervous.B:I was nervous .It was a difficult day for me .A:Why were you so nervous B:I couldn't speak Chinese well .I was always saying ,“Can...
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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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