OG16-104 和OG-90 比较题~OG解释矛盾（个人观点）

waipyt

请各位帮我看看这两道，我觉得有矛盾90、Prices at the producer level are only 1.3 percent higher now than a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raised corn and soybean prices.
(A) than a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raised
(B) than those of a year ago and are going down, even though floods in the Midwest and drought in the South are hurting crops and therefore raising
(C) than a year ago and are going down, despite floods in the Midwest and drought in the South, and are hurting crops and therefore raising
(D) as those of a year ago and are going down, even though floods in the Midwest and drought in the South hurt crops and therefore raise
(E) as they were a year ago and are going down, despite floods in the Midwest and drought in the South, and are hurting crops and therefore raising


104、Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were last year.
(A) Heating-oil prices are expected to be higher this year than last because refiners are paying about $5 a barrel more for crude oil than they were
(B) Heating-oil prices are expected to rise higher this year over last because refiners pay about $5 a barrel for crude oil more than they did
(C) Expectations are for heating-oil prices to be higher this year than last year’s because refiners are paying about $5 a barrel for crude oil more than they did
(D) It is the expectation that heating-oil prices will be higher for this year over last because refiners are paying about $5 a barrel more for crude oil now than what they were
(E) It is expected that heating-oil prices will rise higher this year than last year’s because refiners pay about $5 a barrel for crude oil more than they did

90题答案是B，OG给的解释是A错在The first part of this version of the sentence illogically compares prices to a time
那为什么104正确答案A就是对的呢，A中也出现了compares prices to a time 啊~~90题的A为什么不是now和a year ago比啊，求大神指点，谢谢

DANIELLLLLL

By Ron-
both versions are fine.
i looked at the problem, and—just as i suspected—the choices with '...than a year ago' can be eliminated for other, quite straightforward, reasons.

don't forget—the OG answer keys are usually incomplete, and often incorrect.
the official PROBLEMS are essentially flawless, but the official answer keys are not. (GMAC's all-stars, the people who write the problems, do not write the answer keys; GMAC 'outsources' that work to people of lesser talent, presumably to cut costs.)

waipyt

DANIELLLLLL 发表于 2016-1-3 14:44
By Ron-
both versions are fine.
i looked at the problem, and—just as i suspected—the choices with  ...

谢谢~~明白了

DANIELLLLLL

A is wrong because "are hurting" not parellel with "raised", an usage that is nonsensical, not the first reason metioned in OG explanation.

waipyt

19931101 发表于 2015-12-31 23:45
我上来第一题也选错了，是不是因为第一题price后面加了定语at the producer level的缘故？ ...

不清楚啊，你有见过和这两道题类似的题么？我做这种比较题的时候就是很晕

19931101

我上来第一题也选错了，是不是因为第一题price后面加了定语at the producer level的缘故？