【題目】Science and technology have ______ in important ways to the improvement of agricultural production.

A.attachedB.assistedC.contributedD.committed

【答案】C

【解析】

考查動詞詞義辨析。句意：科學(xué)技術(shù)在很多方面促進(jìn)了農(nóng)業(yè)生產(chǎn)的改善。A. attached把……固定，把……附在……上；B. assisted協(xié)助；C. contributed捐獻(xiàn)；D. committed承諾，保證。contribute to sth：有助于，促成。故選C。

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