关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！ 2022-07-23 Vitamins are a class of high molecular organic compounds( ) Vitamins are a class of high molecular organic compounds( ) 答案： 查看 举一反三 Compounds composed of molecules (molecular compounds) usually contain only elements. Vitamins are a type of organic matter. Vitamins are a type of organic matter. A: 正确 B: 错误 中国大学MOOC: Which of the following are organic compounds? Vitamins are chemical. A: inorganic B: organic C: coordinate D: --
