[讨论]PREP2-84 请高人指点一二

84.   (26216-!-item-!-188;#058&001794)

The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier.  In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available; when such checks are scanned and printed, the dots seem to blend together in such a way that the word “VOID” appears on the check.

A questionable assumption of the plan is that

A. in the territory served by the banks the proportion of counterfeit checks that are made using electronic scanners has remained approximately constant over the past few years

B. most counterfeiters who use electronic scanners counterfeit checks only for relatively large amounts of money

C. the smallest dots on the proposed checks cannot be distinguished visually except under strong magnification

D. most corporations served by these banks will not have to pay more for the new checks than for traditional checks

E. the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future

答案选E，我选C

当时的理解是如果那些小点能够被眼睛所识别出来，那么自然是可以仿造的。

E选项谈及的是未来的情况，感觉不太贴主题啊

困惑困惑！请指教啊！

谢谢解答，但是我又仔细看了一下，发现我的理解和LS有差别。

题目是说scanner或者printer使得制作赝品变得更容易了。所以银行就打算用一些现在的scanner不能识别的小dots作为防伪标记。

而E选项取反之后表示，如果未来scanner可识别的dots的大小会减小，那么总有一天，它是可以去识别现在银行的防伪标记的，从而可以继续制造赝品。因此削弱结论。

之所以会称之为是有问题的假设，应该是指随着技术革新，这种情况是难以避免的吧。

请拍砖！

In order to deter such counterfeiting, several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available（意思是说为了避免赝品，银行计划contain dots很小以至于不能够被现在可用的scanner复制）

E   the size of the smallest dots that generally available electronic scanners are able to reproduce accurately will not decrease significantly in the near future（未来scanner有能力去复制的dots的大小在未来不会减小）

请仔细看一下这两句话。

意思就是说如果未来scanner可识别并复制的dots的大小可减小，那么就能够制作赝品。

我说的明白吗？

期待拍砖！

银行DOT的大小将来不会再减少，而造假技术会逐步提高，所以这个假设有问题？

刚做这道题目 一起说一说

The general availability of high-quality electronic scanners and color printers for computers has made the counterfeiting of checks much easier.-----------scanner的作用在这里 是用来造假的

然后题目又说所以发明dots too small to be accurately duplicated by any electronic scanner currently available----很小的dots让scanner不能复制

我可以理解E，但我选了D，most corporations served by these banks will not have to pay more for the new checks than for traditional checks

我当时的考虑是，不管你新支票效果有多好， 别人得用才行啊！如果变贵了客户很可能不选择使用高级的支票……那就算它更能防伪也没机会啊......