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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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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
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[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：

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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题目：

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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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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题目：

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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[Undefined]

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In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is lined with lead around the perimeter, thereby improving stability in flight and resulting in longer throws.

听了一下已有解答，感觉不是很明白。我选了b，想问下b的错误是单纯的语意不对吗？还是有别的错误，比如it is now的it指代不清？我读b感觉说discus的重量之前在中心，现在围绕着周边。自己感觉这个语义逻辑说的过去啊。重量分布本来就可以在中间也可以四周啊。重量也可以对于飞行产生影响啊。
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[Undefined]

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Which of the following, if true, could present the most serious disadvantage for Northern Air in replacing theirlarge planes with Skybuses?
请陆旭老师解释一下这道题。谢谢您！我没有选E的原因是E会影响别人，但并不一定对自己不好，所以排除了E。可能它说的会 forces other planes to delay their takeoffs，这些 “other planes” 也包括自己？因为这个机场本来就很 congested. 我选了B是因为它削弱了逻辑链的起点，因为如果油价未来会下降的话，换成省油的飞机也没啥优势了。
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[Undefined]

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Which of the following, if true, most strongly supports Summit’s explanation of its success in retaining employees?
D选项不是说了一个非阶层工作环境的好处吗？可以避免一些威胁团队默契的行为因此员工不讨论工作中的任何不满。 是这个任何不满导致改选项变成weaken吗？ 在B和D徘徊。 B说的是nonhierarchical work environment的反面的缺点。
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[GWD]

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The Earth's rivers constantly carry dissolved salts into its oceans.Clearly,therefore, by taking the resulting increase in salt levels in the oceans over the past hundred years and then determining how many centuries of such increases it would have taken the oceans to reach current salt levels from a hypothetical initial salt-free state, the maximum age of the Earth's oceans can be accurately estimated.
 
Which of the following is an assumption on which the argument depends?
这道题在博智模考系统里的给的答案是A，但是进入博小智里给的答案是E了，所以想问问到底哪个是正确的？我最开始选的是E，仔细看了A的句子后，我觉得A也有合理性，原文意思是用过去几百年海里盐的增加量以及假设的最初量，来计算最大可能年龄，A说过去几百年进入海洋的盐的量没有异常地大，就保证了过去几百年这个用来进行估算的增量不是一个海洋历史上的特例，如果是异常的大，显然算出的海洋年龄就会相应偏小。而E，海洋生物就算消耗了盐，对估算也不影响，因为原文中用于估算的是resulting increase in salt levels in the oceans，就是增量，你消耗了一些就消耗了呗，我又不是用进入海里的总量来估算。 不知道我的想法有没有问题，请老师指点。
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[Undefined]

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Rising inventories, when unaccompanied correspondingly by increases in sales, can lead to production cutbacks that would hamper economic growth.
这个题目不选a是因为语意逻辑e更好吗？
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[GWD]

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Caribou are wary animals with excellent hearing, so stalking them over the treeless landscape, getting close enough to kill it with nothing but a handheld lance, as Dorset people did, required exceptional hunting skill.
这道题为什么so后面要加to do，不是应该加句子么？并且B和C有什么区别么？
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[Undefined]

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Diabetes, together with its serious complications, ranks as the nation's third leading cause of death, surpassed only by heart disease and cancer.
这道题我选了c，想问一下c的错误是两个地方吗？一个是has the rank of 还有就是后面only位置前移了。我感觉only前移还是很顺畅的啊，只被超过。only放后面不就是超过只。。。。
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[Undefined]

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The passage suggests which of the following about the blue butterfly mentioned in the highlighted text?
这道题很简单，选出来A选项没有问题。我想问一下Tina老师，关于您说的"上楼下楼”问题，如果觉得这个例子是服务于整个段落的主旨的，或者是服务“冒号”之前的内容，也就是biocontrol agents can negatively affect nontarget species by, for example, competing with them for resources：... 怎样避免选择E这种选项呢？
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[OG]

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The primary purpose of the passage is to
选的a，想知道A为什么不对啊？谢谢老师
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The passage is primarily concerned with
请陆旭老师或Tina老师解答一下：这是一种感觉哪个选项都不好的题。一开始选了C, 可是随后又改成了A （但并不代表我喜欢A），因为觉得原文没有C中说的unexpected findings, 只是后来一些经济学家不认同之前literature对IT的过于乐观的评价。
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