15．The company's _______ to providing quality at a reasonable price has been vital to its success．（　�。�
A．considerationB．commitmentC．competitionD．contribution

分析 該公司以合理的價格提供優(yōu)質產(chǎn)品的承諾對它的成功起了關鍵作用．

解答 答案：B
A．consideration考慮；照顧，關心； B．commitment 承諾，許諾； C．competition 競爭，比賽； D．contribution 貢獻，捐贈；根據(jù)句意可推測出："providing quality at a reasonable price"指的應是對消費者的承諾；故選B．

點評 本題考查了名詞的詞義辨析．在做類似的題時，首先應根據(jù)句意提示，并結合選項中各名詞的意思，進行邏輯推理，從而判斷出空缺處應填的單詞．因此，在平時的學習中，一定要積累一些詞匯量，并熟練掌握它們的意義及用法．

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