“一旦强虏寇边疆，慷慨悲歌上战场。”抗日战争时期八路军组织发起的重大战役是（   ）

①平型关大捷    ②台儿庄战役    ③百团大战      ④平津战役

2016年9月30日晚，由市委宣传部和市文化广电新闻出版局主办，市群众艺术馆承办的纪念红军长征胜利八十周年群众音乐晚会在宜春文化艺术中心举行。晚会由《烽火硝烟红土地》《万水千山永向前》《尾声》三个篇章组成。整场晚会主题鲜明、气势磅礴、催人奋进，既缅怀了革命先辈的丰功伟绩，又讴歌了荡气回肠的长征精神，让观众在欣赏艺术之美的同时，接受了一次爱国主义教育的洗礼。

    There is an old English saying. It tells us that we must go to bed early and get up early in the morning. Then we shall be healthy. We shall also be rich and clever. This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours' sleep every night. Children who do not have enough sleep cannot do their work well and they may not be healthy.

    The body also needs exercise. Walking, running, jumping and playing games are all exercise. Exercise keeps the body strong.

    Exercise also helps the blood to move around inside the body. It is very important. Our blood moves to all parts of our body. The head also needs blood. Exercise helps us to think better.