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試卷名稱：91年 - 91(補考) 大學入學考試中心_學科能力測驗：英文#18316
年份：91年
科目：高中(學測,指考)◆英文
52. According to this passage, the American households using digital cameras will increase if ______.
(A) their producers invest more money
(B) their operation becomes simpler
(C) their salesmen are more friendly
(D) their quality keeps improving