单选题：When performing document retrieval the existing search engin

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题目内容：

When performing document retrieval the existing search engines ignore __ __. A．information in images
B．current popular search engines
C．using photos
D．machine vision systems
E．document search
F．description of the HTML page

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请在【答题】菜单下选择【进入考生文件夹】命令，并按照题目要求完成下面的操作。注意：以下的文件必须都保存在考生文件夹下。财

请在【答题】菜单下选择【进入考生文件夹】命令，并按照题目要求完成下面的操作。注意：以下的文件必须都保存在考生文件夹下。财务部助理小王需要协助公司管理层制作本财年

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