题目

 (07·湖北E篇) lmagine you’re at a party full of strangers. You’re nervous. Who are these people? How do you start a conversation? Fortunately, you’ve got a thing that sends out energy at tiny chips in everyone’s name tag (标签). The chips send back name, job, hobbies, and the time available for meeting-whatever. Making new friends becomes simple.        This hasn’t quite happened in real life. But the world is already experiencing a revolution using RFID technology.        An RFID tag with a tiny ehip can be fixed in a produet, under your pet’s skin, even春秋战国时期出现的社会现象包括(   )①井田制瓦解 ②铁农具和牛耕推广 ③新兴地主阶级开始掌握政权 ④百家争鸣 ⑤争霸战争频繁A．①②③④ B．①③④⑤ C．①②④⑤ D．①②③④⑤