刚体作平动时，某瞬时体内各点的速度与加速度为（）。

A.体内各点速度不相同，加速度相同

B.体内各点速度相同，加速度不相同

C.体内各点速度相同，加速度也相同

D.体内各点速度不相同，加速度也不相同

In a certain group of people,

of the people are men, and

of the men have brown eyes. If

of the people have brown eyes, then what fraction of the group are women who do not have brown eyes