16. One can infer from the survey ’s results that a full one – third of the respondents may have viewed the current benefits package unfavorably.
17. Lacking more specific information about how these other employees responded, it is impossible to assess the reliability of the survey’s results or to make an informed recommendation.
18. It is unlikely that the brief one – week periods under comparison are representative of longer time periods.
19. If so, even though 3 percent more accidents occurred after the change, the author’s argument that changing the speed limit increases danger for drivers would be seriously weakened.
20. The editorial fails to take into account possible differences between East and West Cambria that are relevant to how drivers react to speed – limit changes.
二、逻辑问题分析论证句式
21. In addition, while it is true that many voters change their minds several times before voting, and that some remain undecided until entering the voting booth, this is not true of everyone.
22. Without knowing the extent and nature of the damage resulting from the bad publicity or the reason for the violation, we cannot accept the author’s conclusion.