A:10﹣a
B:10﹣2a
C:5﹣a
D:5﹣2a
板块运动造就了地球表面高低起伏的基本形态。据此回答下列各题。
设集合A=x|x>-1,B=x|-2<x<2,则A∪B=( )
— There ___________ a picture on the wall for a long time.
— Oh, right. It's so beautiful.