68. To （证明）his point, Professor Brown mentioned several other experiments which had similar results.
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prove
To （证明）his point, Professor B…——2013 高考英语第 68 题答案解析
2013_省自主命题（陕西）
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2013_省自主命题（陕西）
68. To （证明）his point, Professor Brown mentioned several other experiments which had similar results.
prove