The company sent _______ books to a village school last month.
A:six thousands of
B:six thousand of
C:six thousands
D:six thousand
Sun Cinema is ________ of all three.
若抛物线y2=px的焦点与椭圆x26+y22=1的右焦点重合,则p的值为( )
小明用如图所示的实验装置,探究反射光线与入射光线是否在同一平面内,应进行的操作是( )