Mọi hành vi vi phạm đến quyền và nghĩa vụ công dân về bảo vệ Tổ quốc, đều:

Hành động nào sau đây không phải là thực hiện nghĩa vụ bảo vệ Tổ quốc của công dân?

Nguyễn Tuân từng giữ chức vụ nào sau đây?

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 is TRUE according to the passage?

Nhận định nào sau đây đúng với công nghiệp của Cộng hòa Nam Phi?

Đâu là ý đúng: Hô hấp oxi hóa ở sinh vật nhân thực có mức hiệu quả xấp xỉ?

Một bệnh nhân bị suy nhược cơ thể được đưa đến gặp bác sĩ. Sau khi xem xét tình hình, bác sĩ đã chỉ định tiêm cho anh ấy một mũi chất X vào trong tĩnh mạch. Sau một thời gian ngắn, thể trạng của bệnh nhân dần hồi phục trở lại. Chất X mà bác sĩ đã tiêm cho bệnh nhân là gì?

Hai viên bi A và B được thả rơi tự do từ cùng một độ cao. Viên bi A rơi sau viên bi B một khoảng thời gian là 0,5 s. Lấy gia tốc rơi tự do g = 9,8 m/s². Khoảng cách giữa hai viên bi sau thời gian 3 s kể từ khi bi A bắt đầu rơi là

Hai điện tích điểm cùng độ lớn 10^-9 C đặt trong chân không. Khoảng cách giữa chúng bằng bao nhiêu để lực tĩnh điện giữa chúng có độ lớn 2,5.10^-6 N ?

Mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 23.

       Music brings many benefits to our lives, especially when we learn something new. Firstly, it makes learning more enjoyable. When we listen to music while studying, it can help us feel relaxed and happy. (18) _______. For example, if you are learning a new language, listening to songs in that language can help you understand and remember words better.

       Secondly, music helps us focus. (19) _______, our mind becomes less distracted. We can concentrate better on our tasks, whether it’s reading, writing, or solving problems. This is because music has a special way of grabbing our attention and (20) _______.

       Finally, music connects us with other cultures. Through music, we can learn about the traditions, feelings, and (21) _______. It’s like traveling to new places without leaving (22) _______. We can hear different instruments, rhythms, and voices that tell us about the rich diversity of our world.

       In summary, music is not just about entertainment. It helps us learn better, stay focused, and (23) _______. It’s a powerful tool that can make our learning journey more exciting and rewarding.

Trong chuyển động ném ngang không vận tốc đầu, phương trình chuyển động theo phương Oy của vật có dạng là

Một sinh viên thực hiện thí nghiệm tổng hợp ethyl acetate từ ethyl alcohol và acetic acid (xúc tác acid \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Sinh viên thu được hỗn hợp Y gồm acetic acid, ethyl acetate, ethyl alcohol và chất xúc tác. Hãy đề xuất phương pháp tách ester ra khỏi hỗn hợp trên.

Biểu hiện của đạo đức kinh doanh trong mối quan hệ giữa chủ thể sản xuất với khách hàng là gì?

Nếu từ các độ cao khác nhau ném ngang các vật với cùng vận tốc thì vật nào ném ở độ cao lớn hơn sẽ có tầm xa

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 from 31 to 40.

          [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 enhance mental resilience and allow for more meaningful, balanced relationships (Robinson & Smith, 2020).

According to paragraph 2, which of the following is NOT an effect of social media on mental health?

Vectơ nào dưới đây là một vectơ chỉ phương của đường thẳng song song với trục \(Ox?\)

Trong tự nhiên chlorine có hai đồng vị bền: ³⁷Cl chiếm 24,23% tổng số nguyên tử, còn lại là ³⁵Cl. Thành phần % theo khối lượng của ³⁷Cl trong HClO₄ là

Cho 2 điện tích điểm nằm ở 2 điểm A và B và có cùng độ lớn, cùng dấu. Cường độ điện trường tại một điểm trên đường trung trực của AB thì có phương

Cho hàm số \(y=f(x)\) có bảng biến thiên như sau:

Hỏi hàm số đã cho đồng biến trên khoảng nào dưới đây?

Read the following passage about Generations Z and Alpha: Born Multicultural Citizens 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.

Generation Z, born between 1997 and 2012, has grown up in a world (18)_________. These young people use smartphones and computers every day to talk with friends from different parts of the world. If they had been born 30 years earlier, they would not have had these opportunities to experience global connections. They are learning about different cultures, languages, and traditions not just from books but through real online friendships.

Generation Alpha, which includes children born after 2013, is even more connected. The toys that Generation Alpha plays with often teach them about global issues while they have fun. Many schools (19)_________. These young students, who come from diverse backgrounds, are creating a new kind of society where differences are celebrated.

(20)_________. Generation Z students participate in exchange programs and travel more than previous generations did. (21)_________, sharing their daily lives and learning from each other.

The world that these generations are creating will be more inclusive and understanding. Traditional borders are becoming less important while cultural exchange is valued more highly. Generation Z and Alpha children, (22)_________, will likely become adults who solve problems together across cultural lines. The future looks promising with these multicultural citizens leading the way.