方案推理
目标 drive competitors off those routes
方案 reduce fares on certain routes to a level at which they lose money
加强
原文给的弱点是，其他公司会采用一样的方式低价竞争，那么就无法赶走竞争者，达不到目标
加强这个推理，就是让弱点变得invaild
证明对手不会采取低价竞争，或者竞争不过主角公司就OK
he does rightly see Jackson's tenure (the seventh presidency) as the culmination of the acceptance of party, commerce, and individualism.
C选项：party是在这时候才合法，并不是这时候才建立
"country community" school of seventeenth-century English history whose intemperate excesses in removing all national issues from the history of that period
这个观点是被HC揭露出来的，所以HC的观点为取非，认为不应该remove national issues from the history of that period，同义替换一下即为选项
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B选项a ration（比率）和42次对比；C 选项as compared to可以作对比，前后两个都是次数