Phát biểu nào sau đây nêu đúng khái niệm trí tuệ nhân tạo?

Chọn ý đúng: Các quốc gia nào sau đây là quốc gia nhập siêu?

Cho tam giác \(ABC\) có \(AB=5,\) \(\hat{B}={{60}^{\circ }}\), \(\hat{C}={{45}^{\circ }}\). Độ dài cạnh \(AC\) là

Loại enzyme nào dưới đây có ái lực cao với CO₂ giúp thực vật C₄ và CAM có thể cố định CO₂ ở nồng độ rất thấp?

Đồ thị biểu diễn mối quan hệ giữa li độ và vận tốc của một vật dao động điều hòa có dạng

Đọc đoạn trích sau và trả lời câu hỏi:

Ai về ai có nhớ không?

Ngọn cờ đỏ thắm gió lồng cửa hang.

Nắng trưa rực rỡ sao vàng

Trung ương, Chính phủ luận bàn việc công

Ðiều quân chiến dịch Thu - Đông

Nông thôn phát động, giao thông mở đường

Giữ đê, phòng hạn, thu lương

Gửi dao miền ngược, thêm trường các khu…

(Việt Bắc, Tố Hữu)

Đoạn trích trên gợi nhớ đến những kỉ niệm trong hoàn cảnh nào?

Read the following passage about Renewable energy sources 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] Renewable energy sources, such as solar, wind, and hydroelectric power, have gained global popularity as a sustainable alternative to fossil fuels. [II] Unlike coal and oil, renewable energy generates electricity without releasing harmful emissions, making it a cleaner option for the environment (Jacobson et al., 2017). [III] However, despite the advantages of renewable energy, there are still notable challenges that need to be addressed for it to fully replace traditional energy sources (Ell Abban et al., 2014). [IV]

          One major advantage of renewable energy is its sustainability. Renewable resources, unlike fossil fuels, are naturally replenished and do not deplete over time. For instance, solar power harnesses energy from sunlight, which is virtually endless. In addition, renewable energy contributes to reducing greenhouse gas emissions, which helps combat climate change. Many countries are increasingly investing in renewable technologies to decrease their carbon footprint and meet international climate goals.

          However, renewable energy has certain limitations. One significant issue is its intermittent nature; for example, solar and wind power depend on weather conditions, making it difficult to generate a consistent power supply. This variability can disrupt the energy grid, which relies on a steady supply of electricity to meet demand. Another challenge is the high initial cost of setting up renewable energy facilities. Although prices have decreased in recent years, installing solar panels or wind turbines still requires substantial upfront investment (IRENA, 2019).

          Despite these challenges, advancements in technology are gradually making renewable energy more efficient and accessible. Improved energy storage systems, such as batteries, allow excess power generated during favourable conditions to be stored and used later, ensuring a more reliable energy supply. As technology and infrastructure improve, renewable energy may eventually.

The word "it" in paragraph 1 refers to ____.

Thời gian chờ khám bệnh của các bệnh nhân tại phòng khám X được cho trong bảng sau:

Khoảng tứ phân vị của mẫu số liệu ghép nhóm này (làm tròn đến chữ số hàng phần trăm) là

Những đường sức điện nào vẽ ở dưới đây là đường sức của điện trường đều

Để Truy xuất tất cả dữ liệu từ bảng "quanhuyen" ta dùng câu lệnh?

Read the following passage about home schooling in the UK 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.

Full-time education in the UK is compulsory from the age of five to sixteen, but this doesn’t have to be in a school. Around 50,000 children are educated at home. This is called ‘homeschooling’.

 Parents take their children out of school for different reasons, like illness and the need for special care, or because the distance to the nearest school may be too far. Some children are simply unhappy at school. Whatever the reason, they’re allowed to study at home, although inspectors regularly check how they are getting on.

 Hayley and Jenny haven’t been to school for two years but they haven’t neglected their studies. Their mother worked out strict timetables for them, with hourly lessons for each day. She’s responsible for teaching them Maths, English, History and French. Their father teaches them Science and Geography. They study all the other school subjects online. ‘We have lessons with Dad in the evenings and at weekends,’ explains Hayley.

 The family’s home is in a remote part of Wales. ‘The girls were fine at school but they spent so much time getting to school, they were too tired to learn, says their mother, Julia”. ‘We had a family conference and in the end we decided to try homeschooling. So far, it’s been a big success, but the girls know that if they want to go back to school at any time, we’ll let them. We follow the normal school program of lessons, and they will take all the normal school exams.’

 There are disadvantages too, of course. ‘Social isolation is something I worry about,’ says Julia. They both seem happy and well-adjusted, but they haven’t really got friends who live locally. But in the summer holidays they go away on trips to summer camps, where they have no trouble mixing with people and making friends.’

In which paragraph does the writer describe the daily routine of Hayley and Jenny?

Theo em, mùi vị của món ăn ngon mẹ nấu cho em ăn là thông tin dạng nào?

Từ năm 1975 đến nay, Việt Nam có hoạt động đối ngoại nào sau đây? 

Thạch quyển được hợp thành bởi lớp vỏ Trái Đất và yếu tố nào?