Could you please have my car ready today
题目
Could you please have my car ready today
Sure ,the damage is not serious ,so it ____be ready by 5:00
A should B could C might D need
答案
正解是A.
这里用should 表示推测,表示理应在5点之前会好.
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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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