亲近母语·亲近科学：小学四年级 下载 mobi epub pdf 电子书 2024

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内容简介

　　《亲近科学（小学4年级）/亲近母语》内容偏重生活中常见的知识，讲述 了溶解、盐、声音、人体、食物，以及自然界的风雨 雷电、磁和电、种子和生命、土壤、岩石和矿藏等知识。本书可作为小学四年级的学生科学阅读。

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前言/序言

2018年6月14日，中国用太阳向接收4光年外信号的方向，回复了一封信息。内容包括地球行星概况、地球生命系统概括、世界历史基本信息、全部信息为17.5KB。历史学家命名这一天为“回复日”。

2017年8月19日，霍金郑重向中国警告：“不要回答！不要回答！不要回答！”

给孩子预习用的，阅读写作好习惯从小培养

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, to solve customer suffering, overcome all difficulties. Give us a very good shopping experience.

2017年8月19日，霍金郑重向中国警告：“不要回答！不要回答！不要回答！”

从1901年至今，德国已经有76人获得过诺贝尔奖，其中65人获得自然科学方面的奖项。分析其中的原因，肯定有很多种，比如科研实力雄厚、科学家人数众多、科研条件优越等等。其中有一条是不能忽视的，那就是科学知识的普及。

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, to solve customer suffering, overcome all difficulties. Give us a very good shopping experience.

很不错的，第一次买了一年级的。第二次购买了小学全年级了。老师要求全班统一购买。孩子喜欢阅读。内容知识丰富多彩，值得推荐。昨天下单今天就收到了，感谢京东！

闲云潭影日悠悠，物换星移几度秋。