标题: prep2-84 [打印本页] 作者: rainbowmanutd 时间: 2011-6-22 11:54 标题: prep2-84 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
答案是E, 这是个对的assumption呀，没有questionable啊～ 作者: sdcar2010 时间: 2011-6-22 12:09
"The resolution of a scanner or printer will not decrease significantly in the near future" is questionable, considering the potential advance in technology.作者: sukieyy 时间: 2011-6-22 19:36
我觉得其实就是让你evaluate一下，题里说这么做是因为一般的机器分辨率没那么高，所以点点管用，但是问题在于将来可能一般的机器技术都提高了，分辨率很高，打印精准度也高，那点点就失去作用了，因为自己就可以复印了嘛~~我觉得哦。。。作者: colasama 时间: 2011-6-23 01:17
questionable assumption 也是个assumption.说白了就是最经典的假设题，把questionable去掉完全不影响。至于为什么会说是questionable，是说段落的结论基于该假设，但是该假设实际上是否真的成立很值得怀疑。作者: colasama 时间: 2011-6-23 01:20
而不是让你选个“不对的假设“