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

Some scientists have suggested that Earth is a kind of zoo or wildlife______for intelligent space beings, like the wilderness ar

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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 固定用法。reserve意为“储备，储存”，一般指大型的、能源方面、自然保护区的储存，储备，而wildlife reserve指野生动物保护区。故答案为D。conservation“环保；避免损失”；maintenance“维护”；storage“存储”，一般指货物的存储。
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