2. 外语
  3. Most people are not yet aware that water is precious resource that must be______.

Most people are not yet aware that water is precious resource that must be______.

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问题 Most people are not yet aware that water is precious resource that must be______.
选项 A、enriched
B、preserved
C、reserved
D、conserved
答案D
解析
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本试题收录于： C类竞赛（非英语专业本科）题库大学生英语竞赛（NECCS）分类
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C类竞赛（非英语专业本科）

大学生英语竞赛（NECCS）

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