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【題目】Evidence obtained from observation and experiment is often used to ______ a scientific theory.

A.confirmB.concludeC.consultD.confuse

【答案】A

【解析】

考查實義動詞辨析。句意：由觀察和實驗得出的證據通常被用來證實科學理論。A. confirm證實；B. conclude得出結論；C. consult 咨詢，請教；D. confuse使更難于理解。根據常識可知，科學理論是需要觀察和實驗得出的證據來證實，故選A。

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