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  3. The suggested causes of a given phenomenon cannot always be independently observ

The suggested causes of a given phenomenon cannot always be independently observ

游客2025-05-11  6
问题 The suggested causes of a given phenomenon cannot always be independently observed, and so it is hard to ______ the possibility of there being explanations alternative to the one proposed.
选项 A、account for
B、rule out
C、guard against
D、do with
答案 B
解析
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