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放暑假了，来自科幻世界的仙霞姐姐为爱好科技的孩子们创办了一个“AA 欢乐营”，让孩子们在那里度过了一个有趣、欢乐的假期。在AA欢乐营中，孩子们懂得了互相学习、团结友爱、自强自立、认真负责等道理，在那里，他们遇到了一个又一个与自然界息息相关的问题：如恒温动物和变温动物的区别；数学中勾股定律的历史、概念；化学中水是由什么物质组成的；物理中光点的产生和原理等等。围绕这些自然界的课题，孩子们都展开了激烈的辩论。暑假很快就要结束了，仙霞姐姐为孩子们设计了一次考试，孩子们通过自己的智慧和勇气，解开了一道道难题，结束了考试，取得了优秀的成绩。仙霞姐姐希望孩子们今后继续努力学习，用自身学到的知识来为祖国现代化科学做出贡献。So you said that the protective equipment did not play a protective role, Of course it did, In those days, Bulletproof vests and other things are still not popular, Helmets are the most important protective gear, I am lucky to wear a helmet, Otherwise, I would have been a martyr long ago, and I chose whether to wear a helmet or a cloth hat. There is no mandatory regulation. I heard that the artillery of the Vietnamese army at position 149 is relatively fierce, so I chose a helmet to enhance the protection of my head. I didn't expect it to be of great use in this place. To be honest, every time I think about it, I still "thank myself." Zhang Xiaobo said here and subconsciously touched his head, as if he were glad that he was wearing a helmet at that time. Otherwise, according to the description of the lethality of this large killing insect, not to mention five or one nailed to his head, the consequences would be unimaginable.Button in Riding-Riding Unrivaled Flurry: When the button is pressed in riding, it becomes Riding Unrivaled Flurry.他越想越佩服周夫子，从未听他数过周家人如何如何，真正的宠辱不惊。5. Installing Vue