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10.One theory explaining thesephenomenasuggests that acupuncture blocks pain signals from reaching the brain.

分析 解释这些现象的一个理论表明,针灸阻止疼痛信号到达大脑.

解答 答案是phenomena.考查单词填空.these后面接名词复数形式.句意是"解释这些现象的一个理论表明,针灸阻止疼痛信号到达大脑."所以用phenomenon的复数形式phenomena表示"现象".故答案是phenomena.

点评 本题考查单词填空.首先要根据语境明确句意,然后再根据相关语法决定正确答案.

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