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　　快来深入太空内部，展开一次惊爆眼球、震撼人心的太空之旅！壮观的太阳系家族令人充满幻想：你或许想乘坐土星光环绕土星嬉戏，或许想一睹“行星之王”木星的风采，或许想感受一下被金星的高温炙烤、心跳加快的刺激，或许想与彗星来一次“龟兔赛跑”。你的想象力有多大，看到的宇宙就有多大！太空里有什么奇妙的东西？打开本书一探究竟吧！

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前言/序言

Thank you very much for the excellent service provided by Jingdong mall, and it is very good to do in warehouse management, logistics, distribution and so on. Delivery in a timely manner, distribution staff is also very enthusiastic, and sometimes inconvenient to receive the time, but also arranged for time to be delivered. At the same time in the mall management Jingdong customer service is also very good. Give us a very good shopping experience！

——献给即将参加高考和其他所有考试的人们

Thank you very much for the excellent service provided by Jingdong mall, and it is very good to do in warehouse management, logistics, distribution and so on. Delivery in a timely manner, distribution staff is also very enthusiastic, and sometimes inconvenient to receive the time, but also arranged for time to be delivered. At the same time in the mall management Jingdong customer service is also very good. Give us a very good shopping experience！

非常好的书，小朋友要激动了

八九岁以上的孩子应该比较喜欢吧

1，这个时期的孩子已学会灵巧使用手指，了解许多事物，语言使用也变得自然流利。因此，这个时期是推理能力大幅提升的时期。

孩子，爸妈知道每年高考出分的时候，哭一

买了好多本dk的书了，基本都不会让人感到失望，就是