Re: [問題] GWD-CR-6-14

看板GMAT (GMAT入學考試)作者danyuchn (Javy)時間13年前 (2012/07/30 12:35)推噓1(1推 0噓 0→)

留言1則, 1人參與討論串2/3 (看更多)

※ 引述《chenemily (天天保持好心情)》之銘言： : GWD6-Q14: : 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? : A. 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. : B. Average pay in the city was at a ten-year low when Mayor Delmont took : office. : C. Some of the jobs created in the city during Mayor Delmont’s tenure : have in the meantime been eliminated again. : D. 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. : E. The average pay for jobs in the city is currently higher than it is for : jobs in the suburbs surrounding the city. : 請問一下這題就是要支持結論:在D的任期平均薪資提高 : 我對A & 正解D答案比較有點疑問 : A說就說再過去3年平均薪資高過於再D執政的薪資 : 請問這題哪裡錯? 比過去高不就直接支持結論了 : 正解D 當初看了就當作補充背景條件刪除了 : 請問該怎麼想 : 謝結論是throughout Delmont’s tenure the average paycheck in this city has been getting steadily bigger. 關鍵在這句中steadily bigger的理解。在我的理解裡，他指的是"每一年"都比"前一年"都要成長但是a選項：三年的平均高於前幾年的平均並不能證明這個 ex. 10 10 10 / 20 1 10/ 斜線中的三年平均的確有高過earlier in Mayor Delmont’s tenure的平均但是一看就知道不是steadily bigger 而是flucturating有上有下 d選項將平均薪資固定->說消失的工作的pay恰好等於全體平均pay 所以工作的消失不會影響平均數，然後每年出現的新工作pay又比較高，每年加進來會持續拉高平均數。也就是說d選項的出現排除了一種情況：「平均pay是100 雖然每年新出現的工作pay都比平均高，比如101 『但是消失的工作的平均pay是200』 -所以平均數會被拉低。」這題故意考個體加入離開與平均數的關係，其實如果寫成Q的算式般題目，搞不好你就會了呢。練習方法無他，多做CR，提升敏銳度而已。 Dustin -- No swing, no Jazz. http://blog.pixnet.net/danyuchn73 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 1.162.24.35