43+19=____
6+84=____
86+9=____
39+21=____
8+38=____
34+46=____
5+45=____
45+29=____
太行山东西两侧的地形区分别是( )
如图,已知△EFH和△MNK是位似图形,那么其位似中心是 ( )
Look at that____. It's cool. (snowman, snowmen)