痛恨
发表于 2025-3-28 17:20:18
. But animals must obtain their energy from the complex materials which they take in as food. The energy is released by the process known as oxidation (burning), in which food is broken down and combined with oxygen to release all the energy which is required. Animals therefore obviously need a supply of food978-0-85200-051-9978-94-010-2353-5
WITH
发表于 2025-3-28 22:38:08
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Pert敏捷
发表于 2025-3-29 00:03:23
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