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题库 / GMATLA-CR-104
Political Advertisement:Mayor Delmont's critics complain about the jobs that were lost in the city under Delmont's leadership. Yet the fact is that not only were more jobs created than were eliminated, but the average pay for these new jobs has been higher than the average pay for jobs citywide every year since Delmont took office. So there can be no question that throughout Delmont's tenure the average paycheck in this city has been getting steadily bigger.
Which of the following, if true, most strengthens the argument in the advertisement?
The average pay for jobs created in the city during the past three years was higher than the average pay for jobs created in the city earlier in Mayor Delmont's tenure.
Average pay in the city was at a ten-year low when Mayor Delmont took office.
Some of the jobs created in the city during Mayor Delmont's tenure have in the meantime been eliminated again.
The average pay for jobs eliminated in the city during Mayor Delmont's tenure has been roughly equal every year to the average pay for jobs citywide.
The average pay for jobs in the city is currently higher than it is for jobs in the suburbs surrounding the city.
(D):废除的工作的平均收入和平均工资相当，可以增强结论。如果砍掉的工作普遍都是那种高薪工作那么就会削弱结论
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(D):废除的工作的平均收入和平均工资相当，可以增强结论。如果砍掉的工作普遍都是那种高薪工作那么就会削弱结论
a.CR 常會犯的錯誤毛病 就是在已經確定的事實做更細部的推論 這無法往後推論到has been getting steadily bigger
d, 削减的工作的工资是等同于全市的平均工资→ 削减的工作的工资=全市的平均工资＜新的工作的工资，同时新的工作数量＞削减的工作数量 →可以推出paycheck has been getting bigger
题干：New>eliminated的工作数量，New pay>average pay
推出： average pay(D的任期内)>average pay(D任期之前)
变化的工作数量=New-eliminated的工作数量，即使新增加的工作数量更多，即变化的工作数量为正数，但是如果被撤销的工作的平均工资>New pay(>average pay),有可能变化的工资总量（=NewXNew pay- eliminatedXeliminated pay）为负，那么在D的任期之内，总的平均工资还有可能下降。