①红________素裹②略输文________③一代天________④引无数英雄________折腰
A:装
B:妆
C:妆
D:装
(2x+3y)2﹣2(2x+3y)(2x﹣3y)+(2x﹣3y)2,其中x= 12 ,y= 13 .
They are new students and _____ of them _____ a new schoolbag.