战国时期流通货币种类有刀、布、钱和爰金，刀币是齐国货币。考古发现在古代赵、燕及辽东和朝鲜北部亦有大量刀币流通，这一现象主要是因为（    ）

阅读理解
    James is a good student and he has lots of friends，but he also has a problem. Some older boys are bullying(欺负)him at school. James is very unhappy and he doesn't know what to do about it. Here are some suggestions to him and other teenagers in this situation.
    Don't feel worried. It's not your fault(过错)! Being bullied can make you feel very lonely and angry，but you are not alone. Don't feel that you have to hide the problem. You should find a person you can trust，and tell them. It might be your teacher，your parents，or even your friend's parents. After you tell someone，you will get some support and feel some relief(解脱).
    Speaking to an adult might make you nervous，but here are other things you can do. Some people express their feelings more easily on paper. Write a letter to someone or keep a diary. Include all the details(细节)about what the bullies do, as well as when and where the bullying happens. You can use it as proof to show what is going on. And it is a wonderful idea to show your letter or diary to a teacher or another responsible adult. Then the bullies will feel very afraid if their names appear in a letter!
    Also，don't show you are sad and don't try and fight with the bullies. You could get in trouble yourself. Ignore them and just walk away. The bullies will soon stop.

判断对错                   

阅读下列材料,回答问题。
材料一 

材料二 现代文明的美国历史,是从一次伟大的、真正解放的、真正革命的战争开始的。——列宁
(1)阅读材料一中的历史图片,给A、C两幅图片写上小标题,并说出与这两幅图片有关的事件的作用。
(2)结合所学知识,把四幅图片按时间先后顺序进行排列。
(3)阅读材料二,说出材料中这次“伟大的、真正解放的、真正革命的战争”指的是哪次战争？ 这次战争的性质是什么? 
(4)这次战争的主要领导人是谁?  结合所学知识,请你对他进行简要的评价。

实现各民族的共同繁荣，是由________ 所决定的。