he was too tired and fell ( )<sleep> soon.my mother always encourages me ()hard
题目
he was too tired and fell ( )<sleep> soon.my mother always encourages me ()hard
he plans to spend two hours ()the task
this gift is so special that she wants to ()to the person she loves best
答案
he was too tired and fell ( sleey ) soon.my mother always encourages me ( to study ) hardhe plans to spend two hours ( finishing ) the taskthis gift is so special that she wants to ( give it away ) ...
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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