已知某几何体的俯视图是如图所示的边长为2的正方形，主视图与左视图是边长为2的正三角形，则其全面积是（ ）

Look, read and choose. 选择画线词语的对应词，将序号写在括号里。

A. father

B. brother

C. grandma

D. man

E. student

⒈This is not a teacher. She's a ____.

⒉This is not a woman. He's a ____.

⒊This is not my grandpa. She's my ____.

⒋This is not my sister. He's my ____.

⒌This is not my mother. He's my ____.

如图所示，在斜面上O点先后以υ₀和2υ₀的速度水平抛出A、B两小球，则从抛出至第一次着地，两小球的水平位移大小之比不可能为（   ）