单选题：The use of magstripe cards by American retailers leaves con

题目内容：

The use of magstripe cards by American retailers leaves consumers exposed to the risks of losing account information．

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答案解析：

Section BPassage OneQuestions l6 to 19 are based on the pas

Section BPassage OneQuestions l6 to 19 are based on the passage you have just

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No country in the world so far has been able to provide completely equal oppor

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Why would an animal kill itself? It seems a strange question, and yet it is one

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依据《工贸企业有限空间作业安全管理与监督暂行规定》，下列关于有限空间作业安全监管的说法，正确的是( )。A．安全监管部门发现有限空间作业存在事故隐患的，应当责令

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