Theo cấu tạo bộ phận tạo thành hòa khí, hệ thống cung cấp nhiên liệu và không khí trong động cơ xăng chia làm mấy loại?

Có hai con lắc lò xo giống nhau đều có khối lượng vật nhỏ là \(m\). Mốc thế năng tại vị trí cân bằng và \(π^2 ≈ 10\). \(X_1, X_2\) lần lượt là đồ thị ly độ theo thời gian của con lắc thứ nhất và thứ hai như hình vẽ. Tại thời điểm \(t\) con lắc thứ nhất có động năng \(0,06J\) và con lắc thứ hai có thế năng \(0,005J\). Giá trị của khối lượng \(m(g)\) là

Bảo vệ Tổ quốc không bao gồm các hoạt động nào?

Việc sử dụng đồng tiền chung Ơ-rô trong Liên minh châu Âu có ý nghĩa

Việc tạo lập và sử dụng ngân sách nhà nước được tiến hành trên cơ sở nào?

Ý nào sau đây không phải là đặc điểm của tín dụng?

Yếu tố nào dưới đây là không thuộc vai trò của thuế?

Đâu là một trong những nhược điểm của cơ chế thị trường là gì?

Lực căng dây được kí hiệu là

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.

I couldn’t help admiring the way he managed to finish the programme even after such a bad fall.

Muốn biết được cấu trúc của Trái Đất, người ta dựa chủ yếu vào yếu tố nào?

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.’

The word “well-adjusted” in paragraph 5 most probably means ______.

Yếu tố nào không tác động đến sự hình thành khối Đồng minh chống phát xít trong Chiến tranh thế giới thứ hai (1939-1945)?

Read the following advertisement about a new travel platform 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. (1,5 points)

DISCOVER NEW TRAVEL BUDDIES WITH TRAVELMATE

"Who will you explore your next destination with? Will they share the same (1) ____________ for adventure, or will they prefer a more relaxing trip?" If you often wonder (2) ____________ your travel companions before your next vacation, we have exciting news for you! TravelMate, a (3) ____________, allows you to select your future travel buddies before your trip. This service is designed to give you a more enjoyable and personalized experience. All you need to do is share your travel preferences with the platform, and you'll be matched with others (4) ____________ similar tastes. Whether you're looking to make new friends or reconnect with previous ones, TravelMate (5) ____________ it easy. If you're seeking adventure or simply want (6) ____________ a relaxing getaway, there's a perfect match waiting for you!

Anion X^2- có cấu hình electron là 1s²2s²2p⁶. Cấu hình electron của X là

Read the following passage about the impact of social media on mental health 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] In recent years, social media platforms have become a central part of daily life, offering users countless ways to connect, share, and communicate. [II] While these platforms offer many advantages, experts have noted rising concerns about their effects on mental health, particularly among young people (Smith & Anderson, 2018). [III] Studies reveal that excessive social media use can contribute to feelings of anxiety, depression, and loneliness, despite its intention to promote connection and social interaction (Twenge & Campbell, 2019). [IV]

A primary reason for these mental health concerns is the tendency for social media users to compare themselves to others. Platforms like Instagram and Facebook often highlight idealized lifestyles, leading users to feel inadequate about their own lives. Additionally, the constant notifications and messages contribute to a "fear of missing out," or FOMO, which keeps individuals in a cycle of checking their phones, often reducing the quality of sleep and overall well-being.

There is also a growing body of research suggesting a link between social media use and decreased attention spans. When users frequently switch between apps and notifications, their ability to focus for extended periods may diminish (Rosen, 2019). This shift in attention can interfere with productivity, especially in academic and professional settings, where sustained focus is essential.

Addressing these challenges requires a multi-faceted approach. Some mental health professionals suggest limiting screen time and setting boundaries, such as "device-free" hours before bedtime. Others recommend engaging in offline activities, like reading or exercising, to reduce dependence on social media and build healthier habits. According to psychologists, such strategies can bu mental resilience and allow for more meaningful, balanced relationships (Robinson & Smith, 2020).

Which of the following best summarizes paragraph 3?

Cho hình chóp \(S . A B C D\) có \(S A \perp(A B C D)\) và đáy là hình vuông. Từ \(A\) kẻ \(A H \perp S B\). Khẳng định nào sau đây đúng?

Cho hàm số \(f(x) = {x^2} - 4x + 3\). Chọn khẳng định đúng?

Khoáng sản nổi bật ở khu vực Mỹ Latinh không phải là gì?

Công nghệ khử nước được ứng dụng cho bảo quản

Giao điểm của đồ thị hàm số \(y=-{{x}^{3}}+5x-2\) với trục tung có toạ độ là