Tại một điểm có 2 cường độ điện trường thành phần vuông góc với nhau và có độ lớn là 3000 V/m và 4000V/m. Độ lớn cường độ điện trường tổng hợp là

Read the following passage about online dating 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.

Psychologists have found many advantages and disadvantages to online dating. Among the many criticisms aimed at online dating, the most severe concern is its effects on people's self-esteem and mental health.

Swipe left or right is the main feature of popular dating apps, where users quickly look at profiles. However, this system is criticized for being superficial. A study showed that users often feel less satisfied with their appearance. Jessica Strübel found that after a while, users begin to feel less like unique, special individuals and more like they're disposable. This feeling leads to users becoming increasingly sensitive about their looks and bodies, heightening self-consciousness. Dating apps also added to the idea that there's always something better around the corner, which further pressures users into trying to appear more attractive.

Dating apps not only harm self-esteem but also alter perceptions of relationships. By accelerating the dating process, these apps encourage poor social behavior. For instance, it's not unusual for people to ignore "likes" and messages or to lose interest and cut off communication. This behavior would have been considered extremely rude in the past. But with online dating, it is a common reality.

Furthermore, thirty-five percent of users actually reported feeling pessimistic about dating. Only twenty-eight percent of surveyed users reported feeling hopeful after using a dating site or app.

In which paragraph does the writer mention a behavior that was once considered rude but is now typical in online dating?

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)

Why does the author mention the sentence "How will you wake up?"?

Cho tập hợp $A = ( -\infty ; m - 1)$ và tập $B = ( 2; +\infty)$, giá trị của $m$ để $A \cap B = \varnothing$ là

Công nghiệp văn hóa Việt Nam bao gồm ngành nào sau đây?

Cho biết: Ở giai đoạn xâm nhập của Virut vào tế bào chủ xảy ra hiện tượng nào?

Nội dung nào thể hiện vai trò của hoạt động tiêu dùng đối với sản xuất?

Người ta sử dụng Auxin tự nhiên (AIA) và Auxin nhân tạo (ANA, AIB) mục đích gì?

Mệnh đề nào sau đây sai?

Phương pháp nào sau đây sử dụng các dụng cụ, hóa chất, quy tắc an toàn trong phòng thí nghiệm để thực hiện các thí nghiệm khoa học?

Dị hóa ở vi sinh vật là quá trình như thế nào?1.html

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Kate, with _________ I studied in the secondary school, is now a famous surgeon.

Read the following leaflet 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 7 to 12.

HOW THE GENERATION GAP PLAYS OUT IN THE WORKPLACE

As a recruiter, I am in constant communication with executive clients and HR colleagues. I regularly (7) ________ on candidates I’ve placed, to see how they are getting on in their new roles. Here are some of the important generational differences I see that can lead to potential (8) ________ if not properly understood:

·       Communication styles

The young generation is more (9) ________, quick to offer constructive criticism, individualistic, with a more casual approach.

Gen X values hard work and long hours, a/k/a ‘The Grind’ – they are more skeptical, formal, and uncompromising.

·       Leadership styles

The young generation is extremely open-minded. They resist micromanagement, and resent pressure. (10) ________ factor that sets them apart is their emphasis on work-life balance.

 (11) ________, their Generation X supervisors, on the other hand, are intensely focused on the organizational processes that brought the company success; they tend to prioritize (12) ________ and the bottom line.

Read the following advertisement and mark the letter A, B, C, and D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.

FASHION FOR EVERYONE

"Are you tired of wearing the (1)______? Do you want to express your style in a (2) _____ way? Fashion is not just for the runway; it's for everyone! Our new collection features pieces (3) _____  for comfort and style will fulfill your wish. Each item is made from high-quality materials, which ensure you feel great all day. Whether you're looking for casual wear or something  to make impression (4)_____others at a party, we've got you covered. (5)_____our store and meet our team who can help you find the perfect outfit. Join the fashion revolution and start (6) _____ your unique style today!"

Trong trường hợp dưới đây, anh T và chị K đã được hưởng bình đẳng giữa các dân tộc về lĩnh vực chính trị thông qua quyền nào?

"Anh T và chị K thuộc các dân tộc khác nhau cùng sống trên địa bàn một huyện vùng cao. Anh T làm việc tại Ủy ban nhân dân huyện còn chị K thực hiện dự án chăn nuôi theo mô hình nông nghiệp sạch. Trong thời gian giữ chức danh Phó chủ tịch Ủy ban nhân dân huyện, anh T đã đóng góp nhiều ý kiến để nâng cao hiệu quả sử dụng đất ở địa phương. Cùng thời điểm đó, do có uy tín, chị K được giới thiệu và trúng cử vào Hội đồng nhân dân xã".

Văn bản kể về sự kiện gì?

Ví dụ nào sau đây minh hoạ cho một quần thể sinh vật?

Yếu tố chính ảnh hưởng đến thiết kế kĩ thuật?

Read the following passage about Vietnamese cultural identity 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.

Vietnamese cultural identity is a rich and intricate tapestry that reflects the nation's long and storied history. Rooted in over a thousand years of civilization, Vietnam's cultural identity is a fusion of indigenous traditions and external influences, shaped by its geographical location and historical interactions.

First and foremost, at the heart of Vietnamese culture is a deep reverence for family and community. Confucian values emphasizing respect for elders, filial piety, and social harmony have played a pivotal role in shaping Vietnamese society. These values are reflected in the close-knit family structures, hierarchical relationships, and communal rituals that are integral to daily life.

Secondly, Vietnamese cuisine is celebrated worldwide for its exquisite flavors and diversity. With its emphasis on fresh ingredients, fragrant herbs, and balanced flavors, Vietnamese food tells a story of the country's agricultural heritage and regional variations. Iconic dishes like pho, banh mi, and spring rolls have become global favorites, representing the culinary artistry deeply ingrained in Vietnamese culture. Also, Vietnam's artistic expressions are equally captivating. Traditional art forms like water puppetry, silk painting, and folk music continue to thrive alongside contemporary artistic movements. Ao dai, a graceful traditional dress, exemplifies the fusion of elegance and modesty in Vietnamese fashion, symbolizing cultural pride and identity.

Today, in the face of modernization and globalization, Vietnamese cultural identity remains resilient. While adapting to the challenges of the 21st century, the Vietnamese people continue to honor their traditions, celebrate their unique cultural expressions, and pass on their heritage to future generations, ensuring that their cultural identity remains vibrant and enduring.

In which paragraph does the writer mention a present concession relationship?

Phép tính $12 \times 3$ có kết quả dưới dạng hệ nhị phân là

Nhận định nào sau đây không đúng với tài nguyên thiên nhiên?