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by 张冲

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。大佬鲨怎么吃水中的浮游生物？海豚是怎么呼吸到氧气的？鹦鹉鱼竟然还有睡袋？快来书中寻找答案吧！