新prep1-84

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，我也使胡选的，A和E选项我都不太明白...

in the territory served by the banks （地点状语）the proportion of counterfeit checks（主语） that are made using electronic scanners（定于从句修饰主语） has remained（系动词） approximately constant（表语） over the past few years（时间状语）

全句意思就是 在银行业务覆盖范围内的一个地区，扫描仪伪造的假支票的比例在过去数年中基本保持不变

意思明白了 也就知道A是无关的了