社会保障的最终责任主体是（）。
A.社会
B.国家或政府
C.个人
D.家庭
参考答案：B
--- I’ll come to see your performance at 9:00 tomorrow evening.
-- I’m sorry, but by then my performance ____ and I ____ reporters in the meeting room.
A．will have ended; will be meeting
B．will end; will meet
C．will be ended; am going to meet
D．is to end; will meet
一个长方体的体积是385立方厘米，且长、宽、高都是质数，求这个长方体的表面积．
