Are you the only child in the family? If so, you are the most important in your family.____But a lot of middle school students have a problem. They feel they're not as close to their parents as before.____.

    Some students complain that their parents say a lot to them, but never listen to them. Some of them even say it angrily.

     “My parents don't allow me to play computer games, but other classmates are doing that”.

    Others say, when they're making phone calls to friends, their parents like to ask if they're speaking to a boy or a girl.____Some students even decide to leave home because they're afraid to tell their parents when they have done something wrong, especially when they do badly in exams. Then they usually think running away is the only choice.____I think they should find a good chance to talk with their parents and they needn't be afraid to tell their feelings to their parents. They can also get help from others like good friends or teachers. Keeping a diary can help them understand more about themselves and their feelings.

    ____ you'll have a happy life and never think of running away.

A. These make them very unhappy.

B. Parents are the closet people to you in the world.

C. But they don't know running away may bring them some more problems.

D. If you follow the advice,

E. They even think their parents are unfair to them.

在图中画出反射光线并标出反射角。

阅读材料，回答问题

材料一：新疆各民族要相互了解、相互尊重、相互包容、相互欣赏、相互学习、相互帮助，像石榴籽那样紧紧抱在一起，心连着心。——***爷爷会见库尔班大叔的曾孙女如克亚木和热依汗古丽赠言

材料二：为庆祝 2016年新疆自治区第一个民族团结进步年，国家进一步加大对新疆教育的投入力度，不仅在南疆三地州实现高中义务教育，力争在2017年9月全新疆实现12年义务教育。这一“民族团结进步年活动”的民生活动，各族群众也得到了实实在在的实惠。“十三五”期间，国家会进一步加大项目、科技、教育、人才、干部等全方位援疆力度，为新疆和内地同步进入全面小康打下基础。

材料三：2016年6月“民族团结一家亲”微信表情包正式在微信平台上线，一时间刷爆了微信朋友圈，点赞、转发、使用民族团结一家亲表情包的人数呈几何级增长，迅速风靡天山南北。充分体现了“民族团结进步年”主题“各民族共同团结奋斗、共同繁荣发展，深入开展民族团结进步创建活动”。