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6.The cost of organic food is higher than ___________ of conventional food because the organic price tag reflects more closely the true cost of growing the food.(  )
A.itB.oneC.thisD.that

分析 有机食品的成本比传统食品高得多,因为有机价格标签更真实地反应了种植中的食物的真正成本.

解答 答案:D 考查指示代词用法.根据题意及句子结构,此处要填一个能代替不可数名词cost的代词,that指代同类而不是同一事物.故选D.one也指代同类而不是同一事物,但只能代替可数名词;it指代同类同物;this指邻近的人或物.

点评 解答此类问题,要弄清楚各个代词的词义及用法,根据题意及上下文选择最合适的答案.

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