奠定战国七雄政治格局的事件( )
A:尊王攘夷、城濮之战
B:问鼎中原、长平之战
C:围魏救赵、马陵之战
D:三家分晋、田氏代齐
亚洲和非洲的分界线是巴拿马运河。
The workers were made from morning to night in the past.
Let’s_______a mouse on the black board.