OG5 阅读 Q35

Choice A is the best answer. In the passage, the author explains that those who are skeptical of the theory that "measuring the aggregate of people's opinions produces a stable, reliable value" (lines 18-20,"of... people's") believe that "people's opinions are easily swayed by those of others" (lines 20-21,"value...so"). This idea is best supported in lines 55-58("Comments ...likely"), which describe a finding from a study of opinions in crowds: "Comments that received fake positive votes from the researchers were 32% more likely to receive more positive votes compared with a control, the team reports." In other words, people were more likely to give a positive vote when they thought other people had given positive votes. 
Choices B, C, and D are incorrect because the lines cited do not provide support for the skeptics' idea that people's opinions are easily influenced by the thoughts of others. Instead, they cite findings concerning people giving ratings different from those already given (choices B and C) and share an observation that the degree to which others can be influenced depends in part on the context of the situation (choice D).