题目
题目
单项选择题

A "Natural Resource" is “自然资源”是

选项
A.a. 一个。resources derived from ecosystems that are of use to humans源自对人类有用的生态系统的资源
B.b. A resource that is natural 天然资源
C.c. organic and nonorganic material of use to all living things用于所有生物的有机和非有机材料
D.d. materials and compounds found in the environment that people can use环境中发现的人们可以使用的材料和化合物
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标准答案
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思路分析
Start by clarifying what the term 'Natural Resource' means in this context. The phrase refers to materials and compounds that exist in the environment and can be used by people, often without requiring creation from scratch. Option a: '一个。resources derived from ecosystems that are of use to humans源自对人类有用的生态系统的资源' This blends the idea o......Login to view full explanation

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