Trong dao động điều hòa x = 2Acos(2ωt + φ), giá trị cực tiểu của gia tốc là:

Read the following passage about Artificial Intelligence 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.

Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are designed to think, learn, and adapt. AI is applied in various fields, including healthcare, education, transportation, and entertainment. Technologies such as machine learning, natural language processing, and robotics enable AI systems to perform tasks like diagnosing diseases, personalizing education, and even driving autonomous vehicles.

One significant benefit of AI is its ability to enhance efficiency and accuracy. For example, AI-powered systems can analyze vast amounts of data faster than humans, identifying patterns and trends that might otherwise go unnoticed. In healthcare, this means earlier diagnosis and improved treatment plans. In transportation, AI contributes to safer roads with the development of self-driving cars.

Despite these advantages, AI poses several challenges. Concerns include ethical issues, such as bias in algorithms, and the potential loss of jobs due to automation. Cybersecurity risks are also heightened as AI systems become more integrated into critical infrastructure. Addressing these challenges requires transparency, regulation, and collaboration among stakeholders.

To maximize its benefits, society must approach AI development responsibly. Governments, private organizations, and researchers are working together to create ethical guidelines and ensure that AI serves humanity’s best interests. As AI continues to evolve, it holds the promise of transforming the way we live and work.

Which of the following is TRUE according to the passage? 

Cho tứ diện ABCD có tất cả các cạnh bằng a. Gọi \({G_1},{G_2}\) lần lượt là trọng tâm tam giác BCD và ACD. Khi đó đoạn thẳng \({G_1}{G_2}\) bằng:  

Read the following passage about managing 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 31 to 40. 

Growing up in Athens, Greece, Lydia Borsi remembers feeling tested when she tried to deal with mental health issues. Borsi says she had been seeing a therapist for anxiety. But she notes that people in Greece do not openly discuss mental health issues, which also get little attention in general healthcare services. “It was a lot more secretive. And people thought that I was a lot more unique,” Borsi said.

That all changed in 2017 when she moved to the United States to study at the University of Rochester in Rochester, New York. “When I came here, I really liked that people were not afraid to speak up about mental health and say that it’s important,” she said. The university was very supportive of her needs and offered plenty of information. She also became involved with a school group called Active Minds that helps students deal with mental health issues. [A]

Then due to the spread of the novel coronavirus, the University of Rochester had to move all its classes and some of its mental health resources online. Luckily, Borsi was able to connect with a mental health expert outside the school, in the local community. [B]

But as many of her American friends returned home, Borsi was stuck. Greece had succeeded in limiting the spread of the virus within its borders, but flights there from the U.S. are barred until July. Also, the health crisis has put her plans to seek admission to medical school in Britain on hold. [C] And she is not alone.

[D] In April, Active Minds launched a survey of over 2,000 students at U.S. colleges and universities. The study found that over 80 percent of those asked said the coronavirus crisis had negatively affected their mental health. One in five said it has affected them severely.

Laura Horne, chief program officer at Active Minds, says the findings are especially troubling given that the crisis is only going to make it harder for colleges and universities to help these students. “Colleges and universities had to pivot rather quickly to respond to COVID-19 and figure out all facets of university life, including mental health services. Now they have to figure out how to communicate with students,” Horne said.

Frank Chen is a Houston, Texas-based psychiatrist who has worked with college-age young adults. He points out that individuals at that age are in an important stage of their mental development. And college can be a difficult experience for students with or without mental health issues, as they balance work, studies, and personal relationships. Adding a major world event, like the spread of the coronavirus, makes it very difficult to predict what the long-term psychological effects might be. “I don’t think that there’s another event in the history of the people who are alive now that can really measure up to this,” said Chen.

What did Borsi enjoy when she came to the United States?

Cho hàm số bậc ba \(f(x)\) có đồ thị như hình vẽ. Hỏi có bao nhiêu giá trị nguyên của tham số \(m\) để phương trình \(f[f(x)]=m\) có đúng 4 nghiệm phân biệt thuộc đoạn \([-1;2]\)?

Read the following passage about lifelong learning and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

In today’s rapidly changing world, lifelong learning has become more important than ever. ___(18)___. To stay relevant and competitive in the job market, individuals must continuously acquire new skills and knowledge.

One of the key benefits of lifelong learning is personal growth. ___(19)___. By exploring new subjects and hobbies, individuals can expand their horizons and discover new passions.

Lifelong learning can also lead to professional advancement. ___(20)___. By staying up-to-date with the latest trends and technologies, individuals can increase their value to employers and advance their careers.

However, lifelong learning can be challenging. ___(21)___. Balancing work, family, and personal commitments can make it difficult to find time for learning.

To make the most of lifelong learning, it is essential to set clear goals and create a personalized learning plan. ___(22)___. By breaking down larger goals into smaller, achievable steps, individuals can stay motivated and make progress.

Choose A, B, C or D to complete each sentence.

They’re going to have a big party ____________ their new home at 6 p.m tomorrow.

You must believe in your own ability and have ____ (confident) in yourself to be __(success).

Read the following passage about The Longitude Prize and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions

     On a stormy night in 1707, four ships struck rocks off the south coast of England and sank. [I] One thousand, four hundred sailors were drowned. [II] The ships had crashed because they had no way of knowing how far they had travelled in a particular direction; they could not calculate their longitude, which required accurate time measurement. [III] In such difficult circumstances, they believed that the best response to the disaster was a competition: the Longitude Prize. [IV]

     The Longitude Prize was no ordinary competition. To win it, someone had to find a way of calculating how far a ship had travelled east or west from its point of departure. Geniuses such as Sir Isaac Newton had failed to find a solution, so to ensure the interest of Britain’s greatest scientific minds, the government offered a prize of £20,000 — the equivalent of £2.6 million in today’s money. But to everyone’s surprise, it wasn’t a famous academic who solved the problem, but an unknown carpenter.

     When John Harrison wasn’t working with wood, he was making clocks. An accurate clock would allow sailors to calculate their position, but at the time it was thought impossible to create a mechanical clock that could work on a ship. The movement of the sea and the changes in temperature destroyed the delicate parts. However, after three frustrated attempts, Harrison’s fourth sea clock, H4, finally triumphed. Its mechanics were so good that the H4 worked better than most clocks on land.

   The Longitude Prize and Harrison’s success generated a lot of interest in the 18th century, but it was soon forgotten. However, in 2013, the British government created a new Longitude Prize, offering £10 million to the person who could solve a great challenge to humanity. An enthralled public then took part in a TV programme where viewers chose one challenge from a list of six for scientists to focus on. The question now is, will someone be able to solve it just as well as Harrison solved the challenge presented to him?

The word it in paragraph 4 refers to ____.

Choose A, B, C or D to complete each sentence.

It rained every day during their stay, so they ________ have had a nice holiday.

Chủ thể nào sau đây đang thực hiện chức năng làm chủ thể trung gian?

Read the following passage about wildlife conservation 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 31 to 40.

[I] Wildlife conservation refers to the efforts made to protect and preserve wild animal species and their habitats. [II] It is crucial for maintaining biodiversity, which plays a vital role in ecosystem stability and health (Smith & Jones, 2018). [III] Unfortunately, many species are threatened due to habitat destruction, poaching, and climate change, making conservation efforts more urgent than ever. [IV]

One of the primary reasons for wildlife conservation is the preservation of biodiversity. A diverse range of species contributes to ecosystem services, such as pollination, water purification, and climate regulation. The loss of a single species can disrupt these services and lead to ecological imbalances. For instance, the decline of pollinators like bees has serious implications for food production and agriculture (Global Biodiversity Outlook, 2020).

Moreover, wildlife conservation has significant economic benefits. Many communities depend on ecotourism, which relies on healthy wildlife populations and intact ecosystems. According to a study by the World Wildlife Fund (WWF), ecotourism can generate billions of dollars in revenue, providing jobs and supporting local economies (WWF, 2021). Protecting wildlife not only safeguards natural resources but also creates sustainable livelihoods for local populations.

However, effective wildlife conservation requires a collaborative approach. Governments, non-governmental organizations, and local communities must work together to implement policies and strategies that promote conservation efforts. Community-based conservation initiatives, where local people actively participate in protecting their natural resources, have shown promising results. These initiatives empower communities and ensure that conservation efforts are tailored to local needs and contexts (Bennett & Dearden, 2014).

Which of the following is TRUE according to the passage?

Read the following advertisement and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.

KEEPING PETS – THE PERFECT COMPANION!

Are you thinking about (1) _____ a pet? Pets bring joy and companionship into our lives, making each day more exciting and (2) _____. Imagine coming home to a loyal dog or a playful cat. They are more than just animals—they are (3) _____ for you and your family.

Keeping pets requires responsibility, but the rewards are immeasurable. Choose a pet (4) _____ your lifestyle and home environment. For example, a small apartment is ideal for cats, while dogs might need more space to roam.

Remember, pets thrive (5) _____ love, care, and proper training. Taking the time to (6) _____ their needs is essential for a happy and healthy pet.

Start your journey to unconditional love with the perfect pet today!

Gọi $\overline{A}$ là giá trị trung bình, $\Delta A'$ là sai số dụng cụ, $\overline{\Delta A}$ là sai số ngẫu nhiên, $\Delta A$ là sai số tuyệt đối. Sai số tỉ đối của phép đo là

Hoạ sĩ vẽ thiết kế một loại gạch trang trí có dạng như Hình 1, gạch có dạng hình vuông cạnh 8 dm. Khi đặt bản vẽ trong hệ tọa độ Oxy với đơn vị của mỗi trục là 1 dm thì mối nét cong phía trong thuộc một trong hai đường hypebol \({\rm{y}} = - \frac{4}{{\rm{x}}},{\rm{y}} = \frac{4}{{\rm{x}}}\) (Hình 2); các cạnh của viên gạch lần lượt thuộc 4 đường thẳng \({\rm{x}} = - 4,{\rm{x}} = 4,{\rm{y}} = - 4,{\rm{y}} = 4.\) Người ta sơn màu hồng vào phần hình được gạch chéo như Hình 3. Diện tích phần sơn màu hồng là bao nhiêu \({\rm{d}}{{\rm{m}}^2}\) (làm tròn kết quả đến hàng phần mười)?

Người ta bắn một viên bi với vận tốc ban đầu 5 m/s theo phương xiên 35^o so với phương nằm ngang. Coi sức cản của không khí là không đáng kể. Lấy g = 9,8 m/s². Vận tốc của viên bi theo phương nằm ngang và phương thẳng đứng tại thời điểm sau 0,2 s từ khi bắn lần lượt là

Nội dung nào dưới đây cho thấy các dân tộc sinh sống trên đất nước Việt Nam đều bình đẳng về kinh tế?

Tính góc giữa hai đường thẳng \(\Delta :x - \sqrt 3 y + 2 = 0\) và \(\Delta ':x + \sqrt 3 y - 1 = 0\)?

Động vật có hệ thần kinh dạng lưới khi bị kích thích thì diễn ra như thế nào?

Đối tượng nghiên cứu của sinh học là gì?