1—―five minutes ___before the last bus left,we arrived at the station ;A.There wereto go B.With;to g
题目
1—―five minutes ___before the last bus left,we arrived at the station ;A.There wereto go B.With;to go C.It was;left D.It had;left2_ an important meeting tomorrow ,I have to prepare for it A there is B There will beC there being D There to be3_______a fine day ,we decided to go out on a picnic A having been Bwhat Cbeing Dit being 4
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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