The young boy,who was late for school this morning again,managed to________the classroom without anyone noticing. A.burst into B.slide into C.break into D.run into 答案:B根据图片,回答问题。 (1)填写出下列字母代表的政权名称:A:________;B:_________;C:_____(2)填写出下列字母代表的都城名称:a.________;b._________;c.__________(3)如上图所示,你认为北宋是否完成了全国的统一?说出你的理由。(4)请为该图片起一个合适的名字。