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    精英家教网 > 高中英语 > 题目详情
    17．Consumers，whose purchases ________ about 70% of economic activity，face a variety of challenges．（　　）
    A．take upB．account forC．hold upD．turn over

    分析 购买约占经济活动的70%的消费者，面临着各种各样的挑战．

    解答 B 考查动词固定短语．take up 占据；account for在（数量上，比例上）占…；hold up 举起，支持；turn over 翻转．根据句意：购买约占经济活动的70%的消费者，所以答案选B．

    点评 英语中的固定短语，既不能添词，也不能少词，是固定的，要求同学们在平时记忆准确，然后根据句意找出记忆中的固定搭配，做出正确的答案．

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