关于人体的6个冷知识 | 6 Fun Facts about the Human Body - 中英双语科普

留学必备 中英双语国际课 那些你不知道的身体冷知识 | What you didn’t know about the human body

How much blood is there in the human body? How many times does the heart beat per day? How much does the brain weigh and how much oxygen does it consume? How many bones do humans have? How big is the surface area of the human lungs? How far does a human walk in a lifetime?
人体内有多少血液？心脏一天跳几次？大脑有多重，消耗多少氧气？人有几根骨头？人肺的表面积有多大？人一生能走多远？

human body, volume of blood, number of heart beats per day, weight of the human brain, oxygen consumption of the brain, number of bones in the human body, surface area of the alveoli in the lungs, distance that average person can walk in a lifetime, biology, physiology, anatomy, science facts, fun facts about the human body
人体，血容量，每天心跳次数，人脑重量，大脑耗氧量，人体内骨骼数量，肺泡表面积，普通人一生可以步行的距离，生物学，生理学，解剖学，科学事实，关于人体的有趣事实

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