Thả một hòn sỏi từ độ cao h xuống đất thì hòn sỏi rơi trong 3 s. Nếu thả hòn sỏi từ độ cao 2h xuống đất thì hòn sỏi sẽ rơi trong bao lâu?

Giá trị của hàng hóa được đo bằng:

Căn cứ đầu tiên để lựa chọn nghề nghiệp trong lĩnh vực công nghệ là:

Sử dụng thiết bị nào dưới đây để đo điện trở?

Read the following passage about human life expectancy and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30. 

How long will a baby born today live? 100 years? 120 years? Scientists are studying genes that could mean long life for us all.

There are already many, many people who have passed the landmark age of 100. In fact, there are now so many healthy, elderly people that there’s a name for them: the wellderly. These are people over the age of eighty who have no major illnesses, such as high blood pressure, heart disease or diabetes.

There are many scientific studies of communities where healthy old age is typical. These include places like Calabria in southern Italy and the island of Okinawa in Japan. In Calabria, the small village of Molochio has about 2,000 inhabitants. And of these, there are at least eight people over a hundred years old. When researchers ask people like this the secret of their long life, the answer is almost always about food and is almost always the same: ‘I eat a lot of fruit and vegetables.’ ‘I eat a little bit of everything.’ ‘I neither smoke nor drink.’

In the past, scientists looked at things such as diet and lifestyle for an explanation of long life, but these days they are also looking at genetics. Researcher Eric Topol says that there must be genes that explain why people are protected from the effects of aging process. The new research into long life did scrutinize groups of people who have a genetic connection. One interesting group lives in Ecuador. In one area of the country there are a number of people with the same genetic condition. It’s called Laron syndrome. These people don’t grow very tall – just over one metre. But Laron syndrome also give them protection against cancer and diabetes. As a result, they live longer than other people in their families. Meanwhile, on the Hawaiian island of Oahu, there’s another group of long-lived men, Japanese-Americans. They have a similar gene to the Laron syndrome group.

Back in Calabria, researchers constructed the family trees of the 100-year-old people. They looked at family information from the 19th century to today. It is concluded that there are genetic factors that give health benefits to the men. This is a surprising result because generally in Europe, women live longer than men. So what really makes people live longer? It seems likely that it is an interaction of genes, the environment and probably a third factor – luck.

The word “scrutinize” in paragraph 4 is closest in meaning to _______.

Trong các câu dưới đây, câu nào là mệnh đề toán học?

Giá trị xuất khẩu và nhập khẩu của các tỉnh Việt Nam trong cùng một thời gian, thường được thể hiện bằng phương pháp nào?

Đối tượng nghiên cứu của Vật lí học là

Số hiệu nguyên tử của nguyên tố Na bằng 11, trong một nguyên tử Na có bao nhiêu electron?

Khi hiện quyền tự do ngôn luận, báo chí và tiếp cận thông tin, công dân không được:

Khi thiết kế sản phẩm cho con người, có mấy yếu tố chính cần được quan tâm?

Read the following passage about climate change and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30. (2 points)

       Vietnamese cultural identity is a rich and intricate tapestry that reflects the nation’s long and storied history. Rooted in over a thousand years of civilization, Vietnam’s cultural identity is a fusion of indigenous traditions and external influences, shaped by its geographical location and historical interactions.

         First and foremost, at the heart of Vietnamese culture is a deep reverence for family and community. Confucian values emphasizing respect for elders, filial piety, and social harmony have played a pivotal role in shaping Vietnamese society. These values are reflected in the close-knit family structures, hierarchical relationships, and communal rituals that are integral to daily life.

         Secondly, Vietnamese cuisine is celebrated worldwide for its exquisite flavors and diversity. With its emphasis on fresh ingredients, fragrant herbs, and balanced flavors, Vietnamese food tells a story of the country’s agricultural heritage and regional variations. Iconic dishes like pho, banh mi, and spring rolls have become global favorites, representing the culinary artistry deeply ingrained in Vietnamese culture. Also, Vietnam’s artistic expressions are equally captivating. Traditional art forms like water puppetry, silk painting, and folk music continue to thrive alongside contemporary artistic movements. Áo dài, a graceful traditional dress, exemplifies the fusion of elegance and modesty in Vietnamese fashion, symbolizing cultural pride and identity.

         Today, in the face of modernization and globalization, Vietnamese cultural identity remains resilient. While adapting to the challenges of the 21st century, the Vietnamese people continue to honor their traditions, celebrate their unique cultural expressions, and pass on their heritage to future generations, ensuring that their cultural identity remains vibrant and enduring.

Which of the following is NOT mentioned as Confucian values emphasizing respect for?

Công dân có nghĩa vụ gì trong việc thực hiện pháp luật về thuế.

Loại thuốc thử nào được dùng để nhận biết sự có mặt của glucose trong tế bào?

Nếu không được điều trị kịp thời, lợn mắc bệnh phân trắng lợn con sẽ chết sau bao nhiêu ngày?

Nguyên tử của nguyên tố R có 3 lớp e, lớp ngoài cùng có 3e. Vậy số hiệu nguyên tử của nguyên tố R là

Read the following passage about urban shift and mark the letter A, B, C, D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

[I] Sperm whales are fascinating creatures. [II] They possess the biggest brain of any species, six times larger than a human’s, which scientists believe may have evolved to support intelligent, rational behavior. [III] They’re also highly social and capable of making decisions as a group. [IV] But there’s also a lot we don’t know about them, including what they may be saying to one another when communicating with a system of short clicks, known as codas.

Now, new research published in Nature Communications today suggests that sperm whales’ communication is actually much more expressive and complicated than was previously thought. A team of researchers led by Pratyusha Sharma at MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) working with Project CETI, a nonprofit focused on using AI to understand whales, used statistical models to analyze whale codas and managed to identify a structure to their language that’s similar to features of human language. Their findings represent a tool future researchers could use to decipher not just the structure but the actual meaning of whale sounds.

For the study, the researchers examined recordings of 8,719 codas from around 60 whales collected by the Dominica Sperm Whale Project between 2005 and 2018, using a mix of AI algorithms for pattern recognition and classification. The AI then turned the clicks within the coda data into a new kind of data visualization called an exchange plot, revealing that some codas featured extra clicks. These extra clicks, combined with variations in the duration of their calls, appeared in interactions between multiple whales, which they say suggests that codas can carry more information and possess a more complicated internal structure than we had previously believed.

The team’s next step is to build language models of whale calls and to examine how those calls relate to different behaviors. They also plan to work on a more universal system that could be used across species, says Sharma. Taking a communication system we know nothing about, working out how it encodes and transmits information, and slowly beginning to understand what’s being communicated could have many purposes beyond whales. “I think we’re just starting to understand some of these things,” she says. “We’re very much at the beginning, but we are slowly making our way through.”

Which of the following is TRUE about the study discussed in this passage?

Việc xây dựng Kim tự tháp ở Ai Cập và Vạn lí trường thành ở Trung Quốc biểu hiện quyền lực gì dưới thời cổ đại ở phương Đông?

The final product of the process of drying liquids that uses the first method will be ______.

Cho hình thang \(A B C D\) vuông tại \(A\) và \(D\) có \(A B=6 a, A D=C D=\frac{1}{2} A B, M\) thuộc cạnh \(A D\) sao cho \(A M=\frac{1}{3} A D\). Tính \(T=(\overrightarrow{M B}+2 \overrightarrow{M C}) \cdot(\overrightarrow{C D}-\overrightarrow{B D})\).

GNI/người phản ánh điều nào?