The door flew open and Miranda tore into the room.门猛地开了，米兰达闯进房间。Miranda shrieked with laughter.米兰达尖声大笑。As he was to tell Miranda later, he as near as dammit left it there.像他随后告诉米兰达的那样，他几乎没碰它。...
A polygon with ten sides is a decagon.十条边的形状叫十边形。The frequency polygon is simpler than its histogram counterpart.频率多边形比直方图更简单.What is the perimeter of this polygon?这个多边形的周长是多少?...