When ____ ____(he)birthday?
It's on June 25th.
方程正确的解是 ( )。
57-x=114
一个长方体底面为正方形且边长为4,高为h,若这个长方体能装下8个半径为1的小球和一个半径为2的大球,则h的最小值为( )
_______ I was in the US, I made a lot of American friends.