2. Product Class: Pizza as defined above is also an abstract class, and specific products are implemented by its subclasses. 帕奎塔是90年代西班牙的顶尖星探,却因突然失去了最大的客户而不得不努力发掘新星。
那么他们确实是‘打破虚空,见神不坏的境界。 < div id= "showcount" >
Two, point to set the following "notice"; 可有子嗣?没有。