揽瓜阁训练营 第九十六天（含CR，RC和DI题目）

小白斩鸡

之前大家对揽瓜阁精读的反馈很好，就想着自己的时间开始把一些精读的文章根据JJ出题目～ 然后focus上线，IR需求 大家也大。就想着 把揽瓜阁的阅读 逻辑 IR 都放在这贴里打卡

每日的解析在揽瓜阁2024群更新

RC题源：揽瓜阁精读的文章+机经的题目
CR题源：本月中文JJ改编
IR题源： 往届鸡精改编

打卡内容：
一周打卡五篇，科目不限。
每天上午管理员群内发布题目，群成员做完提交打卡，第二天发布解析

打卡内容建议：
阅读：写文章结构、笔记
逻辑：写逻辑链分析
IR：写做题思路和选项分析

【现在你的笔记越全，越能帮助你捋清思路，之后回顾总结。】
打卡方式：
可以在论坛留言区打卡，截图到群内
也可以在小红书/微博打卡，需写明任务内容是哪篇，并带上#揽瓜阁 #LGG #lgg 的 tag，截图到群内。



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1. CR
Ten years ago, the government implemented strict safety standards for automobiles. Recently, it has been observed that the number of patients requiring overnight or longer hospital stays due to traffic accidents has significantly decreased. However, this decrease is not attributed to the government's safety standards.
Which of the following, if true, best explains the decrease in the number of overnight hospital stays unrelated to the government's safety standards?
A. In the past decade, there has been a widespread implementation of speed limits in the area.
B. The number of severe injuries from traffic accidents has not decreased in recent years.
C. Hospitals have adopted stricter criteria for admitting patients for overnight stays in the last five years.
D. Advances in medical technology have reduced the need for prolonged hospital stays for accident victims.
E. There has been a significant increase in the use of public transportation, reducing the number of cars on the road.

Norway's GDP per capita is significantly higher than that of the United States, leading to the conclusion that Norwegian workers are more productive than American workers.
Which of the following, if true, most effectively weakens the conclusion that Norwegian workers are more productive than American workers?
A. The total GDP of the United States is much higher than that of Norway.
B. A large portion of the population in the United States is below the working age, more so than in Norway.
C. The concept of productivity is ambiguous and does not accurately measure economic output.
D. Norway has more favorable economic conditions that contribute to higher GDP per capita.
E. Technological advancements in Norway have contributed to a higher GDP per capita.

答案:
CB
今天是节日,就增加2题吧
1.On April Fool's Day, Xiao Bai, the owner of a perfume store, decided to play a joke on his customers. He replaced all the perfumes in the store with "GMAT 740+ Perfume" and told customers that it was a newly launched April Fool's Day limited edition perfume that would guarantee them a score of 740+ on the GMAT exam.However, despite the absurdity of Xiao Bai's prank, the perfume store's sales have shown a significant increase recently. This increase is not attributed to the magic of the "GMAT 740+ Perfume."
Which of the following, if true, best explains the increase in sales unrelated to the "GMAT 740+ Perfume"?
A. In the past decade, students in the area have increasingly valued their GMAT exam scores.
B. The number of customers purchasing "Exam 740+ Perfume" has not increased in recent years.
C. In the last five years, Xiao Bai has introduced more perfumes that help improve study efficiency, attracting more student customers.
D. Studies have shown that using perfume can boost confidence and relieve exam stress.
E. There has been a significant increase in positive reviews about Xiao Bai's perfume store on social media, attracting more customers.

2. On April Fool's Day, Xiao Bai introduces a new product called "Genius Chicken" at his chicken meat shop. He posts advertisements in the store, claiming that this chicken is made from chickens that have taken IQ tests and that eating it can significantly increase one's IQ. Many customers believe this and rush to buy "Genius Chicken."
At the same time, Xiao Bai claims that since the introduction of "Genius Chicken," his chicken meat shop's per capita sales are significantly higher than that of Wang Dama's chicken meat shop next door, leading to the conclusion that the employees at Xiao Bai's chicken meat shop are more productive than the employees at Wang Dama's chicken meat shop.
Which of the following, if true, most effectively weakens Xiao Bai's conclusion that his chicken meat shop employees are more productive than Wang Dama's chicken meat shop employees?
A. Wang Dama's chicken meat shop has much higher total sales than Xiao Bai's chicken meat shop.
B. Many customers purchase "Genius Chicken" because they believe it can increase their IQ, not because of the sales ability of Xiao Bai's chicken meat shop employees.
C. The concept of "productivity" itself is ambiguous and does not accurately measure employees' work efficiency.
D. The area where Xiao Bai's chicken meat shop is located has a higher level of consumption, and customers are more willing to spend more money on chicken.
E. Xiao Bai's chicken meat shop has introduced new cooking techniques that make the chicken taste and flavor more outstanding.

答案:
EB

2.RC
American scholars have unearthed groundbreaking evidence suggesting that orchids, a highly diversified plant species, coexisted with dinosaurs. This revelation comes from an analysis of fossilized orchid pollen found on an extinct bee encased in amber, significantly predating previous estimates regarding the age of orchids. The research, spearheaded by a team from Harvard University and featured in the prestigious journal Nature, proposes that orchids could be as ancient as 80 million years, challenging earlier beliefs that pegged their emergence at around 26 million years ago.

Orchids, recognized for their vast diversity and intricate beauty, have long eluded the fossil record, primarily due to their infrequent flowering cycles and preference for humid, tropical climates, which are not conducive to fossilization. However, the discovery of the amber-preserved bee in the Dominican Republic, initially found by a collector in 2000 and later acquired by Harvard's Museum of Comparative Zoology in 2005, has provided a rare glimpse into the ancient history of these plants.

By examining the DNA of the pollen attached to the bee, which is estimated to be 15-20 million years old, researchers employed molecular-clock DNA analysis techniques to trace the lineage of orchids back to their most recent common ancestor, estimated to have lived around 80 million years ago during the Late Cretaceous period. This timeline places the origins of orchids in the era just before the mass extinction event that wiped out the dinosaurs, approximately 65 million years ago, suggesting that orchids may have witnessed the decline of dinosaurs and subsequently flourished across the globe.

The discovery is hailed not only as a critical piece in solving the puzzle of the orchid family's age but also as one of the first instances where direct evidence of ancient pollination, involving both the pollinator and the plant, has been observed. This finding underscores the intricate evolutionary dance between plants and their pollinators, a relationship that has shaped the natural world over millions of years.

1. The passage is primarily concerned with discussing:
A. The role of bees in the pollination process of orchids.
B. The impact of the dinosaur extinction on plant evolution.
C. The discovery and implications of fossilized orchid pollen on understanding plant history.
D. The climate conditions necessary for the preservation of orchids.
E. The debate among scientists regarding the most effective methods for dating fossils.

2. According to the passage, why have orchids been largely absent from the fossil record?
A. Their extensive variety and adaptability.
B. Their predominance in temperate climate zones.
C. Their rare blooming cycle and tropical habitat.
D. Their recent emergence in the evolutionary timeline.
E. Their small size and delicate structure.

3.  The discovery of the fossilized bee with orchid pollen suggests that:
A. Bees were the primary pollinators of orchids during the Late Cretaceous period.
B. The relationship between bees and orchids has remained unchanged for millions of years.
C. Orchids had developed specialized pollination strategies by the Late Cretaceous period.
D. The bee species found in amber is still prevalent in the Dominican Republic.
E. Orchids were more diverse before the dinosaur extinction than previously believed.

4. How was the age of the orchid family estimated by the researchers?
A. Carbon dating of the amber.
B. Examination of the bee's anatomy.
C. Molecular-clock method of DNA analysis.
D. Comparison with other fossilized plants.
E. Analysis of the climate conditions during the Late Cretaceous period.

5. The primary significance of the orchid pollen discovery lies in its ability to:
A. Provide a direct link between extinct and modern orchid species.
B. Confirm the tropical origins of the orchid family.
C. Illustrate the diversity of the orchid family in the prehistoric period.
D. Demonstrate an instance of ancient pollination involving a plant and its pollinator.
E. Challenge previous assumptions about the age of flowering plants.

6.  The amber-preserved bee was first identified:
A. In Harvard's Museum of Comparative Zoology.
B. By a private collector in the Dominican Republic.
C. During an excavation in the Late Cretaceous period deposits.
D. By researchers analyzing ancient tropical forests.
E. In a scientific study published in the 20th century.

7. The article implies that the flourishing of orchids post-dinosaur extinction was due to:
A. A reduction in competition from other plant species.
B. The development of new pollination strategies.
C. Changes in the Earth's climate.
D. The spread of orchids to new geographical areas.
E. An increase in the number of pollinator species.

8.  The passage mentions that the orchid pollen was analyzed using:
A. Fossil record comparisons.
B. Geological dating methods.
C. Molecular-clock DNA analysis.
D. Chemical composition tests.
E. Pollen grain morphology studies.

C。文章主要讨论了在琥珀中发现的化石兰花花粉对理解植物历史的意义。
C。文章提到兰花之所以很少出现在化石记录中，是因为它们开花不频繁且倾向于生长在热带地区。
C。从琥珀中发现带有兰花花粉的蜜蜂，可以推断出到了白垩纪晚期，兰花已经发展出了特化的传粉策略。
C。研究人员使用DNA分子钟方法来估计兰花家族的年龄。
D。兰花花粉的发现主要意义在于，它提供了一种古老的传粉实例，涉及一种植物及其传粉者。
B。琥珀保存的蜜蜂最初是由一个在多米尼加共和国的私人收藏家发现的。
D。文章暗示恐龙灭绝后兰花的繁盛是由于它们传播到新的地理区域。
C。文章提到兰花花粉是使用DNA分子钟分析来分析的。



As an April Fools' joke, a group of Chinese researchers at the Beijing Institute of Acoustics have claimed to develop a novel musical instrument, the "Fool’s Erhu," that they suggest can only be played once a year on April 1st. This instrument allegedly combines various acoustic elements from traditional Chinese instruments but has a mythical pitch range that extends beyond the capabilities of any known instrument.

The researchers presented a fictional pitch range chart for the "Fool’s Erhu," claiming it can produce frequencies starting from as low as 5 Hz to as high as 50,000 Hz, far exceeding the normal hearing range of humans (20 Hz to 20,000 Hz). According to their playful hypothesis, these extreme pitches are said to influence listeners' sense of reality, inducing a state of light-heartedness and joviality appropriate for April Fools' Day.

The following is the purported pitch range of various imaginary instruments created for the joke, all of which have fantastical properties:

"Dragon’s Zither" - Capable of sounds from 15 Hz to 22,000 Hz.
"Phoenix’s Flute" - Emits tones from 25 Hz to 30,000 Hz.
"Qilin’s Qin" - Produces vibrations from 10 Hz to 40,000 Hz.
"Tiger’s Pipa" - Ranges from 20 Hz to 35,000 Hz.
"Turtle’s Gong" - Has a deep tone stretching from 5 Hz to 25,000 Hz.
The researchers jokingly suggested that these instruments could be used in an exclusive concert held on the Great Wall of China, where the vibrations could possibly alter the structure of the wall due to their extraordinary frequency range.

1. What is the central theme of the Beijing Institute of Acoustics' April Fools' joke?
A. To announce the development of a new musical instrument.
B. To claim the invention of instruments with supernatural properties.
C. To challenge the existing concepts of musical frequencies.
D. To propose a concert with unreal instruments at a historical site.
E. To demonstrate the influence of pitch on human perception of reality.

2. According to the fictional claim, which imaginary instrument has the widest pitch range?
A. "Dragon’s Zither"
B. "Phoenix’s Flute"
C. "Qilin’s Qin"
D. "Tiger’s Pipa"
E. "Turtle’s Gong"

3. If the "Fool’s Erhu" were real, what unique quality might it possess according to the researchers' playful hypothesis?
A. Ability to be heard by all species.
B. Capacity to play continuously without rest.
C. Potential to alter physical structures with its vibrations.
D. Capability to induce emotional responses tied to the day of the year.
E. Feature of being made from mythical materials.

4. The idea of holding an exclusive concert on the Great Wall of China suggests that the researchers:
A. Believe in the historical significance of the location.
B. Want to test the acoustics of the Great Wall with their instruments.
C. Are humorously exaggerating the power of the invented instruments.
D. Aim to draw tourists to the site on April Fools' Day.
E. Plan to incorporate traditional elements into the performance.

5. The researchers' fictional pitch ranges for the imaginary instruments notably:
A. Are all within the normal human hearing range.
B. Exceed the normal human hearing range.
C. Fall below the threshold of human hearing.
D. Are within the pitch ranges of existing traditional Chinese instruments.
E. Align with the modern acoustic technology standards.

6. Given the hypothetical frequency of 50,000 Hz for the "Fool’s Erhu," what could be a playful scientific explanation for its ability to influence reality?
A. The frequency resonates with the brain's alpha waves.
B. Such a high pitch could create a sonic boom.
C. The vibrations can synchronize with Earth's magnetic field.
D. The pitch is at a frequency that can temporarily alter DNA structures.
E. It could induce quantum entanglement with the listener's auditory system.

7.  What is the minimum pitch range claimed for the "Phoenix’s Flute"?
A. 5 Hz
B. 15 Hz
C. 20 Hz
D. 25 Hz
E. 30 Hz

8. If a musical composition were to be performed using all the imaginary instruments, what would be a reasonable outcome to expect in the spirit of the joke?
A. The composition would be silent, as the pitches are beyond human hearing.
B. The performance would result in humorous confusion among the audience.
C. The Great Wall might resonate and create an unplanned 'dance'.
D. The audience would experience a new sense of musicality.
E. The performance would go unnoticed due to the inaudibility of the instruments.

9. What can be inferred about the "Turtle’s Gong" based on its described pitch range?
A. It has the lowest starting pitch of all the imaginary instruments.
B. It is the only instrument that can produce tones below 10 Hz.
C. It has a narrower pitch range than the "Dragon’s Zither".
D. It is likely to be perceived as the most soothing instrument.
E. It was designed to mimic the sound of the ocean.

10. Assuming the "Fool’s Erhu" could be heard by humans, which of the following could theoretically occur during its performance?
A. Dogs and other animals would be attracted to the concert venue.
B. The instrument could be used as a form of sonic weaponry.
C. It could be a tool for meditation due to its low-frequency tones.
D. Its sounds could be recorded and analyzed for scientific research.
E. It could disrupt electronic devices within the vicinity.

正确答案B。文章的中心主题是北京声学研究所的研究人员宣称他们发明了具有超自然属性的乐器，这是愚人节玩笑的一部分。
正确答案C。根据虚构的说法，"Qilin’s Qin" 的音域从 10 Hz 到 40,000 Hz，是所有虚构乐器中音域最广的。
正确答案C。如果"愚人二胡（Fool’s Erhu）"是真实的，根据研究人员的玩笑假设，它可能具有的独特质量是能够用其振动改变物理结构。
正确答案C。在中国长城举办独家音乐会的想法表明，研究人员在幽默夸大他们发明的乐器的能力。
正确答案B。研究人员为虚构乐器制定的音域显著地超出了正常人类的听觉范围。
正确答案A。考虑到"愚人二胡"的假设频率为 50,000 Hz，它影响现实的玩笑科学解释可能是频率与大脑的α波共振。
正确答案D。声称"凤凰笛（Phoenix’s Flute）"的最低音域是 25 Hz。
正确答案B。如果使用所有虚构的乐器表演音乐作品，可以合理预期的结果是，表演会在观众中引起幽默的困惑。
正确答案A。根据其描述的音域，"龟龙锣（Turtle’s Gong）"拥有所有虚构乐器中最低的起始音。
正确答案D。假设人类能听到"愚人二胡"的声音，理论上在其表演期间可能发生的情况是，其声音可以被记录和用于科学研究。

sunsair

CB
第一题其实B也想选，但是有个severe，这个和stay overnight的关系还是没有那么强。而stricter criteria跟overnight stays是直接相关的。
第二又是熟悉的数量和比例的关系，总数不变的情况下，分母越小，分数越大。

sunsair

小白附加CR题：
ED
第一题首先必须是一个可以解释短期内的销售量上升的原因，长期的影响肯定排。本来选了D的，但是发现E更好，毕竟小白这么有流量
第二题，productive肯定是跟东西的数量有关，小白的鸡贵，所以更productive，毕竟是小白亲自斩的。所以说我选的肯定是正确答案

Kalendstyyyyyy

看一下！               

Kalendstyyyyyy

CR
CB
ED(B)

RC
CCE(C)CDBDC

gmatfei

Mark一下！               

sunsair

CCECDBCC
文章讲的是一种史前广泛分布的植物的化石，通过包裹在琥珀里的蜜蜂携带的花粉，发现它比科学家之前认为存在的年份还要早，应该位于8000万年前（早于恐龙灭绝的大事件）而不是2600万年前。（Q1）
第一段讲的是新发现导致了本文结论的成立，。
第二段讲的是一开始这个化石是不好找的，因为其不频繁的开花周期以及其喜欢潮湿的热带环境（Q2），但是initailly found by collector(Q6)，这个琥珀的发现却让大家看到了这罕见的远古植物的面貌。
第三段是说molecular-clock DNA方法（Q4，Q8）测量它的历史时期，定位于6500万年前，早于恐龙灭绝（Q3）并因此在地球上广泛生长（很有可能是气候原因，Q7）
第四段是说这个发现以及研究的意义，不仅仅给大家确认这个植物年份解惑，更是远古传粉的直接证据。它说明了传粉授粉这种关系在数千万年前就已经存在（Q5）

徐公子~

CR： D（C）BED（B）

RC： CCB（C）CDBDC

为了G700

Day 96 CR
第一题，增强题，❌选D，答案C。
P：10年前，政府实施了更严格的汽车安规。因为交通事故要求在医院过夜和待更长时间的病人减少了。
C：这个减少却不是因为安规。

A.过去10年，这里有广泛实施限速. (限速是不是安规的一部分？）
B.严重交通事故的数量在过去几年减少了.(不明白原因）
C. 过去5年医院针对病人住院的时间实施了严格的规定. (没提交通事故）
D. 先进的医疗技术减少了意外事故住院时间过长的需求.(它因直接解释了减少的原因）
E. 公共交通使用的增加，减少了道路上车的使用. (不能直接削弱，因为有可能是交规严格了才减少了车量。）

第二题，削弱题，选B。
P：挪威的人均GDP比美国高很多。
C：挪威工人的生产力比美国工人高。

A.美国总GDP比挪威高很多.(分子高而结果低，需要分母高来解释，但没有）
B.很大部分美国的人口是低于工作年龄的，比挪威多.(分母高所以结果低）
C.生产力的概念是模糊的，没有很准确测量经济的产出.(不能削弱）
D.挪威有更好的经济条件贡献给更高的人均GDP. (增强）
E.挪威技术先进有助于更高的人均GDP. (加强）

casey2023

Mark一下！