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    【题目】The Wall Street Journal reports several research studies conducted over the past few years show a persons personality changes _____ time.

    A. in B. on C. without D. over

    【答案】D

    【解析】试题分析：考查介词。句意：华尔街日报的研究显示几年一个人的行为展示了一个人随时间消磨过去的改变。over time固定搭配，意思是随时间消磨，故选D。

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