You have to ________a mobile phone so that they can call you at any time
题目
You have to ________a mobile phone so that they can call you at any time
A.get B.marry C.store D.sell
The man stood with his hands in his_______
A.drawer B.hair C.books D.pockets
I was late for class because my clock didn‘t______this morning.
A.break off B.go off C.put off D.turn off
Though Zhang Yuehua and Aiqi don't do anything unusual,________ of them are our heroes.
A.both B.neither C.all D.none
答案
A
D
B
A
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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