单项选择题

A.1.5cm*1.5cm*(0.2~0.3)cm
B.2.0cm*1.5cm*(0.2~0.3)cm
C.2.0cm*2.0cm*(0.2~0.3)cm
D.2.5cm*2.5cm*(0.2~0.3)cm
E.3.0cm*2.0cm*(0.2~0.3)cm