He has ( )driving since his illness.A.given up B.given way to C.given in D.given off
题目
He has ( )driving since his illness.A.given up B.given way to C.given in D.given off
答案
选择a given up 放弃
从他病了以后他就放弃开车了
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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