老师反复地要求我们按时做作业.The teacher asked us to do our homework on time () ()()
题目
老师反复地要求我们按时做作业.The teacher asked us to do our homework on time () ()()
答案
again and again
time and again
over and over again
repeatedly
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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