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A rainbow is a multi-colored, arc-shaped phenomenon that can appear in the sky. The colors of a rainbow are produced by the reflection and _26_ of light through water droplets(小滴) present in the atmosphere. An observer may _27_ a rainbow to be locate
Can Learning a Foreign Language Prevent Dementia?A) You may have heard that learning another language is one method for preventing or at least postponing the onset of dementia. Dementia refers to the loss of cognitive abilities, and one of its most com
The lifesaving power of gratitudeA) Gratitude may be more beneficial than we commonly suppose. One recent study asked participants to write a note of thanks to someone and then estimate how surprised and happy the recipient would feel—an impact that t
Unthinkable as it may be, humanity, every last person, could someday be wiped from the face of the Earth. We have learned to worry about asteroids( 小行星) and super volcanoes, but the more likely _26_ , according to Nick Bostrom, a professor of philos
If you think life is wonderful and expect it to stay that way, then you may have a good chance of living to a ripe old age, at least that is what the findings of a new study suggest. That study found that participants who reported the highest levels of
Passage TwoQuestions 51 to 55 are based on the following passage.In a few decades, artificial intelligence (AI) will surpass many of the abilities that we believe make us special. This is a grand challenge for our age and it may require an “irrational
Passage OneQuestions 46 to 50 are based on the following passage.While human achievements in mathematics continue to reach new levels of complexity, many of us who aren\'t mathematicians at heart (or engineers by trade) may struggle to remember the last
Passage oneQuestions 46 to 50 are based on the following passage.You may have heard that Coca-Cola once contained an ingredient capable of sparking particular devotion in consumers: cocaine. The "Coca" in the name referred to the extracts of coca leaf
Are We in an Innovation Lull?[A] Scan the highlights of this year\'s Consumer Electronics Show ( CES ), and you may get a slight feeling of having seen them before. Many of the coolest gadgets this year are the same as the coolest gadgets last year--or
9月13日，全球顶流蕾哈娜(Rihanna)和A$AP Rocky官宣三胎出生——女儿Rocki Irish Mayers来了!Rihanna在Instagram上晒出宝贝女儿的照片，粉色连体衣、带蝴蝶结的小手套，还有她手上那枚刻着“Mom”的戒指，满屏都是母爱泛滥的气息。这已经是两人三年内的第三个娃，网友直呼
Climate change may be real, but it’s still not easy being greenHow do we convince our inner caveman to be greener? We ask some outstanding social scientists.[A] The road to climate hell is paved with our good intentions. Politicians may tackle pollute
Passage OneQuestions 46 to 50 are based on the following passage.New research suggests that pandas may be at risk of dying out because they are too comfortable. Experts say too much happiness can stop the bears from searching for new mates.Environmenta
It may sound surprising,but you don\'t have to be interested in fashion, or even in history, to enjoy Dress Codes: How the Laws of Fashion Made History. I happen to be interested in both, and ended up enjoying the book for completely different reasons.R
Why Do Americans Work So Much?A)How will we all keep busy when we only have to work 15 hours a week?That was the question that worried the British economist John Maynard Keynes when he wrote his short essay“Economic Possibilities for Our Grandchildren
Of the endless troubles that come with being driven from one\'s home country, losing educational certificates may seem small. But it isn\'t. Refugees who settle in other countries often find themselves unable to continue on their previous career path due
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