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by 王维浩

ebook

经过认真创作和编选，符合小学一年级孩子的心理和阅读能力，在快乐阅读的同时潜移默化地获得科学知识。为什么蜻蜓要点水？青蛙的皮肤能呼吸吗？为什么青蛙的嘴总是一鼓一鼓？快来书中寻找答案吧！