一道奇怪的逻辑题

青槐

An independent analyst asserts that the new Pokia digital camera for mobile phones is more precise, of higher quality and costs less than any of the popular competing models. As a result, Pokia will become the more desirable, low-priced alternative to currently existing models of digital cameras.

Which of the following, if true, would most challenge the argument above?

• A
  
  Many retailers already carry one or more low-priced digital cameras and are disinclined to carry another.
  
  
  
• B
  
  Several lower-priced models of digital cameras will soon be introduced by other mobile phone manufacturers.
  
  
  
• C
  
  The Pokia Corporation's digital camera can be used in conjunction with higher-priced mobile phones manufactured by other companies.
  
  
  
• D
  
  Most of the individuals and companies that would be expected to make up the potential market for the Pokia digital camera have already fulfilled their digital camera needs.
  
  
  
• E
  
  The independent analyst whose views were incorporated in the statement above has used measures of quality that are not universally accepted by the consumer public.
  
  
  

我之前好像看到逻辑书上写Premise是绝对正确的，那这道题不是否定了premise的正确性了嘛？求解，感谢！

1998JIN

我瞎理解一波
第一题是因为 alternative to currently existing models of digital cameras 导致其他四个都不太沾边
第二题是因为E取反之后说反对党觉得这个标准有问题，然而文章本来就说的是反对党觉得觉得现在的政府不公平blabla，所以取反之后疑似没削弱？

1998JIN

同问

青槐

青槐 发表于 2019-9-25 16:07
Press Secretary: Our critics claim that the president's recent highway project cancellations demonst ...

it's easier to eliminate E by just noticing that it goes the WRONG WAY!

the evidence presented here was gathered/reported by nonpartisan auditors. thus, the argument is obviously stronger if EVERYONE accepts these auditors' conclusions.

choice E says that someone is REJECTING the conclusions drawn by nonpartisan auditors. since the whole argument is based on those people's conclusions, such a rejection could only work against the argument!
it's obviously not helpful—let alone NECESSARY, as assumptions must be.

there's no point in thinking further than that. clearly, an ASSUMPTION can't work AGAINST the argument!
这个是RON的解释

青槐

Press Secretary: Our critics claim that the president's recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties. They offer as evidence the fact that 90 percent of the projects canceled were in such districts. But all of the canceled projects had been identified as wasteful in a report written by respected nonpartisan auditors. So the president's choice was clearly motivated by sound budgetary policy, not partisan politics.

Which of the following is an assumption on which the press secretary's argument depends?
A. Canceling highway projects was not the only way for the president to punish legislative districts controlled by opposition parties.
B. The scheduled highway projects identified as wasteful in the report were not mostly projects in districts controlled by the president's party.
C. The number of projects canceled was a significant proportion of all the highway projects that were to be undertaken by the government in the near future.
D. The highway projects canceled in districts controlled by the president's party were not generally more expensive than the projects canceled in districts controlled by opposition parties.
E. Reports by nonpartisan auditors are not generally regarded by the opposition parties as a source of objective assessments of government projects.
还有这道题的E不也是说Premise是错误的嘛？为啥不能选呢？虽然我知道B选项的意思，但是E选项取非之后也能削弱题目，求解。