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！ 2022-06-07 中国大学MOOC: Air, food and water are _________ to life. 空气﹑ 食物﹑ 水都是生命不可或缺的。 中国大学MOOC: Air, food and water are _________ to life. 空气﹑ 食物﹑ 水都是生命不可或缺的。 答案： 查看 举一反三 Water is ______ to life. (i)水对生命是不可或缺的。 中国大学MOOC: The ______ needs of all animals are food, water, air and protection from their enemies. 中国大学MOOC: Air is to human _______ water is to fish. ____ no air or water, there would be no life in the world. 中国大学MOOC: Food is________ (essence)for life.
