二次函数f(x)=x2﹣2x+2在[﹣2,2]的值域为( )
A:1,2
B:2,8
C:2,10
D:1,10
阅读下列材料:
材料一:传说中黄帝时代的发明创造
材料二:司母戊鼎
下图的现象叫____ ,它是由于____ 而形成的.
①彭德怀 ②贺龙 ③刘伯承 ④邓小平
I usually go to school by bike, today I took a bus because it rained heavily.