This paper is not free! I’d appreciate it if everyone would start trying to______it.

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问题 This paper is not free! I’d appreciate it if everyone would start trying to______it.

选项 A、use
B、produce
C、move
D、conserve

答案D

解析这篇论文并不是自由版权，如果大家能努力保护它的版权，我会很感激的。use使用。produce生产。move移动。只有D项符合句意。

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A类竞赛（研究生）

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