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As online organizations have broken the time and geographical restrictions, they have saved the time and transportation costs that parents and children have to pay. Secondly, it has the natural advantage of directly facing the national market and allocating the national teacher resources, breaking the regional restrictions on obtaining customers and employing teachers. In addition, in the process of scale-up, online organizations do not need to invest in the training of stores and store managers, so the upfront investment is relatively low.3, "Special Period" Care More向左走向右走Installation Information2. Practical materials　　顶尖杀手艾娃效忠于一个神祕组织，在全球各地执行高价值目标的暗杀行动。然而，一次出了差错的行动，让艾娃身陷生死危机。面对各路杀手铺天盖地的追杀，无路可退的艾娃唯有杀出血路，才有活下去的机会…中国马兰核实验基地，原子弹实验进入到关键阶段。为了解除实验部队的后顾之忧，大批科技、保障人员的家属、儿女从全国不同城市进入马兰。初到基地的孩子们，对这里的一切都充满了好奇，他们在学习、生活、玩耍、游戏中渐渐感受着大人们的艰难困苦，以童真童趣对遇到的各类人或事进行着诠释，演绎了一个个令人忍俊不禁、感人至深的故事。直到1964年10月16日原子弹爆炸成功，他们才知道自己的父辈们是在何等艰苦的条件和恶劣的环境中，实现了中国的第一个强国梦——中国梦。重走当年路，如今已是花甲之年的“马兰的孩子们”感慨万千。