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

Đạo hàm của hàm số \(f\left( x \right)=\sqrt{\text{ln}\left( \text{ln}x \right)}\) là:

Anh T là chủ của một công ty chuyên sản xuất giày dép, hằng ngày anh đến công ty giám sát và hướng dẫn nhân viên cách làm ra sản phẩm chuẩn. Sản phẩm của công ty anh T được rất nhiều người tiêu dùng tin tưởng sử dụng. Trong trường hợp trên, anh T tham gia vào nên kinh tế với vai trò là chủ thể gì?

Trong giảm phân II, các NST có trạng thái kép ở các kì nào sau đây?

Read the following leaflet and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanks from 7 to 12. 

PROMOTE MENTAL WELL-BEING AT HOME!

Nurturing Your Mind and Spirit

Taking care of our mental health is just as important as our physical health, which  helps us cope with stress, build resilience, and lead fulfilling lives.

Facts and Figures

• Nature’s Impact: Studies show that spend time outdoors can significantly reduce stress levels. However, (7)_____ people feel they lack access to green spaces.

• Screen Time Concerns: Excessive daily (8)_____  time is linked to increased anxiety and depression. (9)_____ spending too much time on the phone screen, why don’t we go outside and get some fresh air?

Positive Actions You Can Take

• Designate a cozy corner in your home for reading, meditation, or simply unwinding. Make it a daily habit with soft lighting, plants, and comfortable seating.

• Start a gratitude journal! (10)_____ three things you're thankful for each day to cultivate a positive mindset.

• Make time for meaningful (11)_____ with family and friends. Connect with (12)_____ regularly help strengthens your support network and combats feelings of isolation.

Văn hóa của quốc gia Cham-pa và Phù Nam có điểm gì tương đồng? 

Chọn ý đúng: Tiêu chí thứ tư trong đánh giá công nghệ là gì?

Thành tựu nào dưới đây là một trong 4 phát minh kĩ thuật quan trọng của người Trung Quốc thời phong kiến?

Mỗi hoạt động kinh tế có vai trò khác nhau nhưng chúng có mối quan hệ mật thiết, tác động qua lại với nhau, đảm bảo cho nền kinh tế không ngừng như thế nào?

Một trong các bước thực hiện trong đề tài nghiên cứu thành phần hóa học và bước đầu ứng dụng tinh dầu tràm trà trong sản xuất nước súc miệng được thể hiện trong hình dưới đây:

Bước thực hiện trong hình trên ứng với bước nào trong phương pháp nghiên cứu?

Những thiết bị nào sau là thiết bị số?

Choose A, B, C or D:

John was in Hanoi and wanted to send a parcel to his parents. He asked a local passer-by the way to the post-office. 

- John: “Can you show me the way to the nearest post office, please?” 

- Passer-by: “______”.

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).

The word "their" in paragraph 3 refers to ____.

Điều nào không đúng khi nói về cơ chế phát tán của worm?

Read the passage below and choose A, B, C or D.

Although noise, commonly defined as unwanted sound, is a widely recognized form of pollution, it is very difficult to measure because the discomfort experienced by different individuals is highly subjective and, therefore, variable. Exposure to lower levels of noise may be slightly irritating, whereas exposure to higher levels may actually cause hearing loss. Particularly in congested urban areas, the noise produced as a by-product of our advancing technology causes physical and psychological harm, and detracts from the quality of life for those who are exposed to it.

Unlike the eyes, which can be covered by the eyelids against strong light, the ear has no lid, and is, therefore, always open and vulnerable; noise penetrates without protection. Noise causes effects that the hearer cannot control and to which the body never becomes  accustomed. Loud noises instinctively signal danger to any organism with a hearing mechanism, including human beings. In response, heartbeat and respiration accelerate, blood vessels constrict, the skin pales, and muscles tense. In fact, there is a general increase in functioning brought about by the flow of adrenaline released in response to fear, and some of these responses persist even longer than the noise, occasionally as long as thirty minutes after the sound has ceased.

Because noise is unavoidable in a complex, industrial society, we are constantly responding in the same way that we would respond to danger. Recently, researchers have concluded that noise and our response may be much more than an annoyance. It may be a serious threat to physical and psychological health and well-being, causing damage not only to the ear and brain but also to the heart and stomach. We have long known that hearing loss is America's number one nonfatal health problem, but now we are learning that some of us with heart disease and ulcers may be victims of noise as well. Fetuses exposed to noise tend to be overactive, they cry easily, and they are more sensitive to gastrointestinal problems after birth. In addition, the psychic effect of noise is very important. Nervousness, irritability, tension, and anxiety increase affecting the quality of rest during sleep, and the efficiency of activities during waking hours, as well as the way that we interact with each other.

Which of the following is NOT the response of human body to noise?

Read the passage below and choose A, B, C or D to answer each question from 636 - 640.

Many of the most damaging and life-threating types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, struck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short-live local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.

Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or “Nowcasts”, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.

With which of the following statements is the author most likely to agree?

Ý nào đúng: Đâu là mặt hàng nhập khẩu chủ yếu của các nước đang phát triển?

Trong năm 1930, những Đảng cộng sản nào đã lần lượt ra đời ở khu vực Đông Nam Á?

Đọc đoạn trích sau và trả lời câu hỏi:

(1) Nhựa nóng mười năm nhân dân máu đổ

(2) Tây Bắc ơi, người là mẹ của hồn thơ

(3) Mười năm chiến tranh, vàng ta đau trong lửa

(4) Nay trở về, ta lấy lại vàng ta.

(Tiếng hát con tàu, Chế Lan Viên)

Câu thơ nào trong đoạn trích trên được lấy ý từ câu ca dao?

Trào lưu triết học nào đóng vai trò quan trọng trong sự thắng lợi của cách mạng Pháp 1789?