2. 外语
  3. Some scientists have suggested that Earth is a kind of zoo or wildlife ______ for intelligent space beings, like the wilderness

Some scientists have suggested that Earth is a kind of zoo or wildlife ______ for intelligent space beings, like the wilderness

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问题 Some scientists have suggested that Earth is a kind of zoo or wildlife ______ for intelligent space beings, like the wilderness areas we have set up on earth to allow animals to develop naturally while we observe them.
选项 A、conservation
B、maintenance
C、storage
D、reserve
答案D
解析 wildlife reserve野生动植物保护区(具体概念)；wildlife conservation对野生动植物的保护(抽象概念)；maintenance维护，保持；storage贮藏(量)。
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