写出下列单词的反义词或词组
题目
写出下列单词的反义词或词组
this boy mother son brother uncle these no long big last he his take black buy new short answer sad
答案
this-that,boy-girl,mother-father,son-daughter,uncle-aunt,these-those,no-yes,long-short,big-small,last-first,he-she,his-her,take-bring,black-white,buy-sell,new-old,short-long/tall,answer-question,sad-h...
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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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