Người ta cung cấp một nhiệt lượng 9500 J để một thanh kim loại có khối lượng 0,5 kg tăng nhiệt độ từ 25 ^oC lên 75 ^oC. Bỏ qua mọi hao phí khác. Kim loại này là

Máy tính của em đang làm việc với một tệp trên thẻ nhớ. Em hãy sắp xếp lại thứ tự các thao tác sau để tắt máy tính an toàn, không làm mất dữ liệu?

a) Chọn nút lệnh Shut down để tắt máy tính.

b) Đóng tệp đang mở trên thẻ nhớ.

c) Chọn "Safe To Remove Hardware" để ngắt kết nối với thẻ nhớ.

d) Lưu lại nội dung của tệp.

Read the following passage about lifelong learning 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] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]

One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.

Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.

In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).

Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.

The word "it" in paragraph 5 refers to ____.

Khái niệm dùng để chỉ tất cả các hoạt động kinh tế của một quốc gia được gọi là hoạt động gì?

_______, she will buy her parents a new TV.

Vì sao trong cuộc chạy đua với các nước tư bản phương Tây, tư bản Pháp lại có thể “bám sâu” được vào Việt Nam?

a. Ahmed: That's because the ice in the Arctic is melting.

b. Kenji: That's terrible for the polar bears and other animals that live there.

c. Kenji: Why is the ice melting?

d. Ahmed: Because of global warming. The Earth is getting warmer, so the ice is turning to water.

e. Kenji: I saw a picture of a polar bear on a small piece of ice.

Cho $A=\left(-2;1 \right), \, B=\left[ -3;5 \right]$. Khi đó $A\cap B$ là tập hợp nào sau đây?

Phương thức truyền tin giữa các tế bào thần kinh hoặc giữa tế bào thần kinh với tế bào đích là gì?

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

The student next to me kept chewing gum. That bothered me a lot.

Nhóm thực vật C3 được phân bố ra sao?

Trong hình thức sinh sản sinh dưỡng, cây con không được hình thành từ bộ phận nào?

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 23 to 30.

The Koromi trend has taken social media by storm, influencing fashion, lifestyle, and online communities worldwide. Originating in Japan, Koromi is characterized by a unique blend of gothic aesthetics, cute elements, and bold self-expression. Unlike mainstream kawaii culture, which emphasizes bright colors and cheerful themes, Koromi embraces darker shades, punk influences, and a rebellious attitude. This fusion of edginess and playfulness has resonated with many young people looking for an alternative form of self-representation.

Social media platforms like TikTok and Instagram have played a crucial role in popularizing the trend, as influencers and fashion enthusiasts share their interpretations of the Koromi style. The trend's rise is also linked to a growing appreciation for individuality and alternative fashion in contemporary youth culture.

Beyond fashion, the Koromi trend has influenced makeup styles, accessories, and even music preferences. Many followers of this aesthetic incorporate dark eyeliner, edgy clothing, and playful accessories to create a distinctive look. As more people adopt the Koromi lifestyle, brands have started releasing special collections inspired by the trend. However, some critics argue that the commercial adoption of Koromi dilutes its original meaning and turns it into a passing fad rather than a genuine subculture.

While Koromi's popularity continues to grow, it remains a niche trend compared to mainstream fashion movements. Its impact, however, is undeniable, as it encourages self-expression and challenges conventional beauty standards. Whether it will evolve into a long-lasting cultural phenomenon or fade away as another internet-driven craze remains to be seen.

Which of the following is TRUE according to the passage? 

Tư tưởng Duy tân khi đi vào quần chúng đã vượt qua khuôn khổ ôn hòa và biến thành cuộc đấu tranh nào?

Tính chất nào sau đây không biến đổi tuần hoàn theo chiều tăng của điện tích hạt nhân?

Ý nào sau đây là thể hiện vai trò của nhân sách nhà nước?

Đâu là nội dung về những tiêu chí người tiêu dùng luôn đặt lên hàng đầu khi mua sắm?

Trong một trường phổ thông cơ sở ở Hà Nội có 3 thầy giáo là Minh, Tuấn, Vinh dạy các môn Sinh vật, Địa lý, Toán, Lịch sử, Tiếng Anh và Tiếng Pháp, mỗi thầy dạy hai môn.

Người ta biết về các thầy như sau:

     - Thầy dạy Địa và thầy dạy Tiếng Pháp là láng giềng của nhau (1)

     - Thầy Minh trẻ nhất trong ba thầy (2)

     - Thầy Tuấn, thầy dạy Sinh và thầy dạy Tiếng Pháp thường đi với nhau trên đường về nhà (3)

     - Thầy dạy Sinh nhiều tuổi hơn thầy dạy Toán (4)

     - Thầy dạy Tiếng Anh, thầy dạy Toán và thầy Minh khi rảnh rỗi thường hay đánh quần vợt với một thầy thứ tư (5)

Thầy nào dạy Tiếng Anh?

Phương pháp gì thường dùng để biểu hiện loại đối tượng địa lí không phân bố ở mọi nơi trên lãnh thổ, mà chỉ tập trung ở một khu vực nhất định?

Read the passage carefully

1. Do you find yourself yawning all day at school? You probably need more sleep. However, it is not just how much sleep you get that is important. What you do before bedtime also has a huge effect on how you feel the next day. If you spend time chatting to someone on social media, or reading a book on your e- reader, you are not alone.

2. All devices' screens give out a large amount of blue light, which affects the body's production of the sleep hormone, melatonin, which can change your sleep patterns. So it is not just getting to sleep that becomes hard, but the quality of your sleep also suffers. The result is that you can wake up several times during the night, and have difficulty getting up in the morning.

3. Sleep is food for the brain, so not sleeping well can be a severe problem for anyone, especially for teenagers, because their brains are still developing. When you do not sleep well, it can be difficult to concentrate at school, which makes it harder to learn and get good grades. It can also affect your mood, making you feel sad or anxious. 

4. So, it is clear you should not use your phone before you go to sleep. Why not leave it in another room? Nothing on social media is so important that it cannot wait a few hours! You should rediscover paper books and enjoy feeling tired and sleepy before bedtime rather than wondering why your best friend has not liked your photo! How will you wake up? You do not have to use the alarm on your phone. Go and buy yourself an old-fashioned alarm clock! The negative effects that screen time is having on sleep have been in the news a lot recently, so manufacturers of smartphones and tablets have added a feature to the mobile devices that can help reduce these. Most new phones have a night-time setting that changes the colour of the screen so that it gives out less blue light. If you really cannot avoid going onto social media at bedtime, think about turning on this setting on your phone.

(Adapted from Prepare)

What is the word “severe” in paragraph 3 is closest in meaning to?

Đặc điểm nào sau đây có ở DNA ngoài nhân mà không có ở DNA trong nhân?