2. 外语
  3. By saying "no document is safe any more", the author probably means ______. The advantage of using banding patterns to trace do

By saying "no document is safe any more", the author probably means ______. The advantage of using banding patterns to trace do

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问题 By saying "no document is safe any more", the author probably means ______.
The advantage of using banding patterns to trace documents is that it ______.
选项 A、is economically affordable and technically practical
B、strengthens the cooperation between printing companies
C、makes printers cheaper and hard to be taken around
D、is able to identify even the most specialized criminals
答案A
解析 由题干中的using banding patterns to trace documents定位到原文第五段末句Using the banding patterns of printers to secure documents would be both cheap to implement and hard...．[精析] 推理判断题[考频：66]。该句说，利用打印机频带模式来确保文件的安全性，不仅在安装上成本低，如果可能的话，那些没有专业知识和硬件的罪犯很难躲避。由此可以推知，利用频带模式追踪文件的优势在于经济上可以承受而且技术上可行。故A)与之相符，为正确答案。[避错] 原文虽提及Chiu博士为了消除频带以提高打印质量而与打印机公司进行合作，但是并未提及和印刷机公司之间的合作，故排除B)“这加强了印刷机公司的合作”；原文只是提及“利用打印机频带模式来确保文件的安全性，并且在安装上成本低”，并未提及印刷机的价格和携带，排除C)；原文只是说“那些没专业知识和硬件的罪犯很难躲避”，并非指特殊的犯罪，故D)“这甚至可以鉴别最为特殊的犯罪”错误。
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大学英语四级

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