1和2用介词填空.3和4适当形式填空
题目
1和2用介词填空.3和4适当形式填空
1、the policeman stopped the car because the driver went ___ a red light .2、piease write to reply ___the e-mail at once .3、the policeman stopped the car because the driver went ___a red light .(care)4、please write down your name ___(clear)
答案
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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