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  3. Researchers at the University of Colorado are investigating a series of indicato

Researchers at the University of Colorado are investigating a series of indicato

游客2024-11-23  17
问题 Researchers at the University of Colorado are investigating a series of indicators that could help themselves to predict earthquakes.
选项
答案 themselves--them
解析 译文：科罗拉多大学的研究人员正在研究一系列能帮助他们预测地震的指标。
分析：考查反身代词。只有当主语和宾语为同一人物或事物时，宾语才可用反身代词。此句为复合句，定语从句的先行词为indicators，而此处指的是主句的主语Researchers，所指不一致，不能用themselves，故应改为them。
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