When we told him the surprising news, he didn't feel surprised _______.
A:at all
B:in all
C:for all
D:of all
——Lily, is this ___ ipad?
——No, it's not mine. I think it's Lucy's.
①请你用四个词语概括出整个故事的情节:____—____—____—____
②本文重点了武松____和____这两个故事情节,分别可以看出武松____和____的性格特点。
在等差数列{an}中,若a2,a10是方程x2+12x-8=0的两个根,那么a6的值为( )