∵a<0<b,
∴(a-b)2=|a-b|=b-a.
故选B.
一栋五层住宅,内外承重墙采用黏土砖砌筑,楼板及屋面板为预应力圆孔板,每层均设有构造柱及圈梁,该房屋属于( )。
A.剪力墙结构
B.框架结构
C.砖混结构
D.排架结构
She is so________ to Korean soaps that recently she began to study Korean.
A.addicted
B.anxious
C.crazy
D.interested