2. 外语
  3. By saying no document is safe any more, the author probably means ______. What lies at the core of both old and new ways of ant

By saying no document is safe any more, the author probably means ______. What lies at the core of both old and new ways of ant

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问题 By saying no document is safe any more, the author probably means ______.
What lies at the core of both old and new ways of anti-counterfeiting is ______.
选项 A、the quirks of the keys of the typewriters
B、the drums and mirrors of the printers
C、the subtle flaws of printing devices
D、the special skills of the experts
答案C
解析 由题干中的the core of both old and new ways of anti-counterfeiting定位到原文第二段第一、二句 His approach is based on detecting imperfections in the print quality of documents．Old-school court scientists were able to trace documents to particular typewriters based on quirks of the individual keys．原文第二段第一句就说“他的方法建立在检测文件打印质量的瑕疵上”，然后下文接着说老式的方法主要靠打字机键盘的特定字体弯曲来追踪文件，又说他的方法与老式的相似，利用打印机内部的滚筒和磁镜设计方面有瑕疵的事实来追踪文件。因此可以推断新旧两种方式的共同核心在于印刷设备的细微缺陷。故C)含义与之相符，为正确答案。[避错]A)“打字机键盘的特定字体弯曲”是老方法的依据，故排除；B)“打印机内部的滚筒和磁镜”不具体，原文指“打印机内部的滚筒和磁镜存在工程学的瑕疵”，故排除；D)“专家的特殊技巧”在原文没有提及，故排除。
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