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题目：

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

选项:

A、On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B、On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C、On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D、Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E、Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

答案:

E
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题目：

According to recent studies comparing the nutritional value of meat from wild animals and meat from domesticated animals, wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is good for cardiac health.

选项:

A、wild animals have less total fat than do livestock fed on grain and more of a kind of fat they think is
B、wild animals have less total fat than livestock fed on grain and more of a kind of fat thought to be
C、wild animals have less total fat than that of livestock fed on grain and have more fat of a kind thought to be
D、total fat of wild animals is less than livestock fed on grain and they have more fat of a kind thought to be
E、total fat is less in wild animals than that of livestock fed on grain and more of their fat is of a kind they think is

答案:

B
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题目：

Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if one arm is lost it quickly replaces it, sometimes by the animal overcompensating and growing an extra one or two.

选项:

A、one arm is lost it quickly replaces it, sometimes by the animal overcompensating and
B、one arm is lost it is quickly replaced, with the animal sometimes overcompensating and
C、they lose one arm they quickly replace it, sometimes by the animal overcompensating,
D、they lose one arm they are quickly replaced, with the animal sometimes overcompensating,
E、they lose one arm it is quickly replaced, sometimes with the animal overcompensating,

答案:

B
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[Sentence Correction]

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题目：

Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.

选项:

A、Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
B、An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear.
C、An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
D、Executives' being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
E、Being heavily committed to a course of action, especially one that has worked well in the past, is likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.

答案:

E
20答疑

[Problem Solving]

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题目：

The charge for a single room at Hotel P  is 25 percent less than the charge for a single room at Hotel R  and 10 percent less than the charge for a single room at Hotel G . The charge for a single room at Hotel R  is what percent greater than the charge for a single room at Hotel G  ?

选项:

A、15%
B、20%
C、40%
D、50%
E、150%

答案:

B
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题目：

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.

选项:

A、each a roof of poles and arrowweed
B、each a roof of poles and arrowweed that are being
C、with each being a roof of poles and arrowweed
D、with roofs of poles and arrowweed to be
E、with roofs of poles and arrowweed that are

答案:

A
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题目：

Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932.

选项:

A、Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932.
B、Although named for the New Mexico site where first discovered in 1932, Clovis points are spear points of longitudinal grooves chipped onto their faces and have been found all over North America.
C、Named for the New Mexico site where they have been first discovered in 1932, Clovis points, spear points of longitudinal grooves chipped onto the faces, have been found all over North America.
D、Spear points with longitudinal grooves that are chipped onto the faces, Clovis points, even though named for the New Mexico site where first discovered in 1932, but were found all over North America.
E、While Clovis points are spear points whose faces have longitudinal grooves chipped into them, they have been found all over North America, and named for the New Mexico site where they have been first discovered in 1932.

答案:

A
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The remarkable similarity of Thule artifacts throughout a vast region can, in part, be explained as a very rapid movement of people from one end of North America to the other.

选项:

A、The remarkable similarity of Thule artifacts throughout a vast region can, in part, be explained as
B、Thule artifacts being remarkably similar throughout a vast region, one explanation is
C、That Thule artifacts are remarkably similar throughout a vast region is, in part, explainable as
D、One explanation for the remarkable similarity of Thule artifacts throughout a vast region is that there was
E、Throughout a vast region Thule artifacts are remarkably similar, with one explanation for this being

答案:

D
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题目：

A ruined structure found at Aqaba, Jordan, was probably a church, as indicated in its eastward orientation and by its overall plan, as well as artifacts, such as glass oil-lamp fragments, found at the site.

选项:

A、A ruined structure found at Aqaba, Jordan, was probably a church, as indicated in its eastward orientation and by its overall plan, as well as
B、A ruined structure found at Aqaba, Jordan, once probably being a church, was indicated by its eastward orientation, overall plan, and
C、Indicating that a ruined structure found at Aqaba, Jordan, was probably a church were its eastward orientation and overall plan, but also the
D、A ruined structure found at Aqaba, Jordan, was probably a church, as indicates its eastward orientation and overall plan, as well as the
E、That a ruined structure found at Aqaba, Jordan, was probably a church is indicated by its eastward orientation and overall plan, as well as by the

答案:

E
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[Critical Reasoning]

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In the year following an eight-cent increase in the federal tax on a pack of cigarettes, sales of cigarettes fell ten percent.  In contrast, in the year prior to the tax increase, sales had fallen one percent.  The volume of cigarette sales is therefore strongly related to the after-tax price of a pack of cigarettes.
 
The argument above requires which of following assumptions?

选项:

A、During the year following the tax increase, the pretax price of a pack of cigarettes did not increase by as much as it had during the year prior to the tax increase.
B、The one percent fall in cigarette sales in the year prior to tax increase was due to a smaller tax increase.
C、The pretax price of a pack of cigarettes gradually decreased throughout the year before and the year after the tax increase.
D、For the year following the tax increase, the pretax price of a pack of cigarettes was not eight or more cents lower than it had been the previous year.
E、As the after-tax price of a pack of cigarettes rises, the pretax price also rises.

答案:

D
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[Undefined]

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Only a reduction of 10 percent in the number of scheduled flights using Greentown’s airport will allow the delays that are so common there to be avoided. Hevelia airstrip, 40 miles away, would, if upgraded and expanded, be an attractive alternative for fully 20 percent of the passengers using Greentown airport. Nevertheless, experts reject the claim that turning Hevelia into a full-service airport would end the chronic delays at Greentown.

Which of the following, if true, most helps to justify the experts’ position?
你好，我不太理解航班延误和吸引乘客之间有什么关系？H扩大规模，吸引乘客选择机场G就能解决延误？为什么选E不选B
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[GWD]

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In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly sixhours a week.
B选项分号前面讲1981年的事，用一般过去时。分号后面讲1997的事，用过去完成式。我一直以为过去完成时用于过去的过去。如何理解B选项分号前后时态的使用和年代先后搭配的合理性？
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23493浏览

[GWD]

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The first English settlers to establish a permanent colony in America did it not at Plymouth but along the shore of the James River west of Chesapeake Bay.
but instead-语意重复, but rather语义重复-这俩个我非常不敏感；排除CE；D的不平行结构排除；留下AB；A的it,特定指代往前找-permanent colony感觉可以，也就是说第一批英国移民did permanent colony 不在 P这个地方，但在某个海岸边；but前后连接的/对比的就是俩个不同的地方，且都有介词；不过我感觉就是某人did sth to 达到某个目的这个说得通；如果缺少did一样东西，语义不太对；所以我感觉要保留it；老师说so可以指代前面这个事情，那就是permanent colony，因为有did，所以so指代了名词-的确so可以做代词，但是it的特指也没有问题吧-老师说It指代问题；
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[GWD]

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Although people in France consume fatty foods at a rate comparable to the United States, their death rates from heart disease are far lower in France.
老师说的：***突破点是rates，因为DE中的rate of fatty没有复数，而划线外rates有复数；（可能老师没有说清楚，ABC前半句都是单数）;这道题我拿到手注意的几个点-1）although跟句子，逗号必须俩个完整句子且有转折，2）比较对象-这个我经常很混乱，这里肯定是法国和美国比较，开始觉得是法国人和美国人，但是只有C选项是法国人和美国人；后半句比较也是法国和美国这个很清楚因为in France；3）另外比较纠结的就是后半句的比较结构不太清晰，lower in France，那最好前面说heart disease in US are far flower in France，但是未划线无法改动，所以有点变相影响了对于前句的思考-也许不一定要出现一个平行结构；这道题我觉得很难，因为省略了特别多；B的未划线death rates指代不清楚；但是好像ABCDE一看都是有点指代问题-their rates, the rates都有指代问题，选不出来
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[Undefined]

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A year ago, Dietz Foods launched a yearlong advertising campaign for its canned tuna. Last year Dietz sold 12 million cans of tuna compared to the 10 million sold during the previous year, an increase directly attributable to new customers brought in by the campaign. Profits from the additional sales, however, were substantially less than the cost of the advertising campaign. Clearly, therefore, the campaign did nothing to further Dietz’s economic interests.

Which of the following, if true, most seriously weakens the argument?
理解了E选项，但能不能分析一下AD选项。谢谢！
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[Undefined]

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Past assessments of the Brazilian rain forest have used satellite images to tally deforested areas, where farmers and ranchers have clear-cut and burned all the trees, but such work has not addressed either logging, which is the removal of only selected trees, as well as surface fires, burning down individual trees but do not denude the forest.
这里我不太懂的是1）平行结构为何不选；2）log,logging，查了一下Log可以做动词，logging也可以做名词；根据语义，过去用卫星记录巴西与林的状况，可以清楚的看到农民和养牛的人烧毁了树；但是这样的工作并没有被addressed either logging，这里我理解问题没有被addressed通常跟by，后面动词名词都可以，大概就是the problem is not addressed by teacher; the problem is not addressed by using specific method；所以logging其实动词还是名词我都觉得可以；但是少了By，不过未划线我不去评价；然后说了logging是被选择的树的移除；的确可以修饰Logging,讲了一个Logging的定义(但是老师说这个which明显不修饰logging，因为如果修饰logging就不用逗号，而有逗号，说明which应该指代前面的某个名词，违背了which的用法-这里我不敢乱说关于是否需要加标点-我觉得这个排除的理由有点牵强)；那which不修饰Logging,则修饰work，我感觉也对：这里我觉得work的本质就是Logging…所以work is addressed (by) logging很合理；然后我比较无脑选了removing 和burning搭配很好，而B的logging和后面or…里面没有Ing的平行；排除了B；我第二次自己做还是下意识的平行结构…
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[GWD]

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The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting how rising greenhouse gas concentrations could affect climate.
C和D之间。之前听英老师的解答。说是海洋环境的某些方面应该是某一个东西而不是事，为什么呢？ C翻译是“wc对全球变暖的影响是海洋环境的某一方面”；D翻译是“wc对全球变暖有影响这件事是海洋环境的某一方面”。我觉得C中的“影响是某一方面”有点奇怪；即使不奇怪，那“一件事是某一方面”感觉也可以呀…… 请老师解答，谢谢
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[OG18]

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With employer-paid training, workers have the potential to become more productive not only in their present employment but also in any number of jobs with different employers. To increase the productivity of their workforce, many firms are planning to maintain or even increase their investments in worker training. But some training experts object that if a trained worker is hired away by another firm, the employer that paid for the training has merely subsidized a competitor. They note that such hiring has been on the rise in recent years.

Which of the following would, if true, contribute most to defeating the training experts’ objection to the firms’ strategy?
C答案，培训机构的培训费用降低，那么人才流失造成的成本流失也就降低了，defeat了专家的观点。这样想是哪里出了问题呢？
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[GWD]

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Until a few centuries ago, any large bones discovered in the fields or caves of Europe, now known to be large prehistoric animals, were usually assumed to be the remains of giants and were often displayed as curiosities in castles, palaces, town halls, churches, and monasteries.
C和D的区别是什么？C的those不会累赘吗？D末尾的those有没有错？请唐老师解答，谢谢！
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[Undefined]

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Which of the following most logically completes the argument?
 
A new machine for harvesting corn will allow rows to be planted only fifteen inches apart, instead of the usual thirty inches.  Corn planted this closely will produce lower yields per plant.  Nevertheless, the new machine will allow corn growers to double their profits per acre because __________.
我拿到题目，理解了题意，看到题干说了closely会yield lower，我做题第一反应就是必须证明是否已经达到了这个界定范围-100 inches apart和99 inches apart并不会影响产量，所以题干中没有给出一个界定范围，也许选项中会给出也说不定-预判(！！老师说逻辑题尽量不要自我预判方法-危险,至少assumption唯一方法取非驳斥,其他方法都不可以)；D我脑补了1）没有说达到某个界定范围，Plants增多并没有Lower yield per plant-可能收入会接近俩倍， 2）脑补了类似fixed cost概念，至少每亩土地的成本是不会变的，就是有些成本不管产量多少都固定不变，则俩个因素同时作用Profits达到俩倍也是可能的；A粗糙的看就是对的；老师说了因为成本大量下降，则利润双倍，但是rev没有说，其实逻辑也没有那么严密；如果A的逻辑不严密可以选，D也差不多；排除D的原因，老师说这个观点是almost，就是没有达到俩倍。（我没有想抬杠，但是我当时做题的时候感觉AD俩个我纠结了，我自己错题整理时候也说了A没有不对，但是，AD比较，D的选项信息和原文题干相似度更高，且信息量更少；A中给出新的信息比较多，可能风险比较大…我就选了D；D说了plants就almost double，但仍然不讨论是否yield per plant是否会变化，这也是合理的；
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