Tập nghiệm của bất phương trình \(x^2\) – x – 6 ≤ 0 là:

Liên hợp quốc xác định rõ một trong các mục tiêu của tổ chức là thúc đẩy quan hệ hữu nghị giữa các dân tộc trên cơ sở:

Hệ thống ngân sách nhà nước gồm mấy bộ phận chính?

Phát biểu nào sau đây không đúng với tác động của hoạt động xuất khẩu tới sự phát triển nền kinh tế trong nước?

Read the passage carefully. Choose an option (A, B, C, or D) that best answers each question from to 646 to 650:

1. Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

2. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

3. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't  agree.

4. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

5. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

What is the word “potentially” in paragraph 4 closet in meaning to?

Một trong những học giả tiêu biểu của triết học duy vật thời kì Phục hưng ở Tây Âu là

Trong đoạn 1, màu sắc và văn hóa Tây Nguyên thể hiện qua những yếu tố nào?

Kết quả của phép hội mệnh đề p và mệnh đề phủ định của p như thế nào?

Nguyên nhân chủ yếu nhất dẫn đến sự thất bại của phong trào Cần vương là gì?

Gồm 1 - 2 xí nghiệp riêng lẻ, phân bố gần vùng nguyên nhiên liệu và đồng nhất với một điểm dân cư là đặc điểm nổi bật của tổ chức lãnh thổ nào?

Yếu tố nào dưới đây khiến cho vùng Đông Bắc có mùa đông lạnh nhất cả nước?

Nguồn năng lượng được sử dụng trong quá trình hóa tổng hợp có nguồn gốc từ đâu?

Một vật có khối lượng m, chịu hợp lực tác dụng F thì chuyển động với gia tốc a. Nếu tăng độ lớn hợp lực tác dụng lên 2 lần đồng thời giảm khối lượng vật 2 lần thì khi đó vật chuyển động với gia tốc như thế nào?

Cho nguyên tử R có tổng số hạt cơ bản là 46. Số hạt mang điện nhiều hơn số hạt không mang điện là 14. Cấu hình electron nguyên tử của R là

Read the following passage about Wildlife Conservation in Africa 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.

Wildlife conservation in Africa is vital for preserving biodiversity and ensuring the survival of iconic species such as elephants, lions, and rhinos. [I] The continent is home to some of the world’s most diverse ecosystems, including savannahs, rainforests, and deserts. [II] Conservation efforts involve strategies like protecting habitats, combating poaching, and raising awareness about the importance of wildlife. [III] Despite challenges, success stories demonstrate the positive impact of these efforts. [IV]

One notable example comes from Kenya, where anti-poaching initiatives and community engagement have helped stabilize elephant populations in Amboseli National Park. Similarly, in South Africa, rhino conservation programs use advanced technologies like drones and GPS tracking to monitor and protect vulnerable animals. These efforts not only safeguard wildlife but also promote eco-tourism, which supports local economies.

However, wildlife conservation in Africa faces persistent threats. Habitat loss due to agricultural expansion and urbanization continues to endanger species. Climate change exacerbates these challenges, altering migration patterns and threatening ecosystems. Furthermore, poaching and the illegal wildlife trade remain significant concerns, driven by global demand for products such as ivory and rhino horn.

To overcome these challenges, conservationists emphasize the need for international collaboration and local community involvement. Initiatives like eco-tourism provide financial incentives for communities to protect wildlife. Governments, NGOs, and individuals must work together to ensure the survival of Africa’s unique species for future generations.

Which of the following best summarizes paragraph 2? 

Việt Nam ban hành sử dụng UTF-8 từ năm nào bao nhiêu?

Giberelin chủ yếu sinh ra ở đâu?

Scheduling a family meeting ____ a regular basis is a good way to make sure this activity happens.

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

    [I] Youth unemployment has become a pressing issue in Vietnam in recent years, particularly among graduates. [II] As the economy continues to grow, the influx of young people entering the workforce has outpaced the availability of suitable jobs. [III] Various factors contribute to this challenge, leading to significant consequences for both the economy and society. [IV]

    Many factors push young people into unemployment. For instance, a mismatch between education and job market demands often leaves graduates without the skills that employers require. Furthermore, the competitive job market means that even qualified candidates struggle to secure positions. In contrast, there are opportunities that attract youth to urban centers, where industries are more concentrated, providing potential access to better employment prospects and a higher standard of living.

    The impacts of youth unemployment are far-reaching. First, high unemployment rates can lead to increased poverty levels among young adults, which in turn affects their overall well-being and mental health. Additionally, the lack of stable jobs can result in social unrest, as frustrated youth may engage in protests or other forms of activism. Finally, this phenomenon can lead to a brain drain, where skilled young people migrate abroad in search of better opportunities, further depleting the local talent pool.

    Addressing youth unemployment is a complex challenge that requires a comprehensive understanding of its causes and effects. By implementing effective educational programs, fostering entrepreneurship, and encouraging job creation in various sectors, Vietnam can better support its youth, providing them with opportunities for fulfilling careers and contributing to the economy without sacrificing social stability.

Which of the following best summarises paragraph 3?

Đối với sự phát triển của nền kinh tế, văn hóa tiêu dùng có vai trò như thế nào?