Nhận định nào không đúng về đặc điểm của lớp vỏ địa lí?

Mầm bệnh dịch tả lợn cổ điển xâm nhập vào vật nuôi theo con đường chính nào?

Phát biểu nào sau đây là đúng?

Quá trình chuyển hóa năng lượng trong động cơ đốt trong là?

Có hai cơ sở khoan giếng \(A\) và \(B\).

Cơ sở \(A\): giá 1 mét khoan đầu tiên là 8000 VND và kể từ mét khoan thứ hai, giá của mỗi mét sau tăng thêm 500 VND so với giá của mét khoan ngay trước đó.

Cơ sở \(B\): Giá của mét khoan đầu tiên là 6000 VND và kể từ mét khoan thứ hai, giá của mỗi mét khoan sau tăng thêm \(7 \%\) giá của mét khoan ngay trước đó.

Một công ty giống cây trồng muốn thuê khoan hai giếng với độ sâu lần lượt là 20 m và 25 m để phục vụ sản xuất. Giả thiết chất lượng và thời gian khoan giếng của hai cơ sở là như nhau. Công ty ấy nên chọn cơ sở nào để tiết kiệm chi phí nhất?

Read the following passage about urbanisation and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions.

URBANISATION: A GROWING PHENOMENON

     Urbanisation is the process through which cities grow, and higher populations begin to inhabit urban areas. This phenomenon has accelerated significantly over the past few decades due to various factors. One of the primary drivers is the search for better employment opportunities. In rural areas, job prospects are often limited to agriculture and small-scale industries, which might not provide sufficient income. Consequently, people migrate to cities seeking better livelihoods and living standards.

     Additionally, urban areas offer more advanced educational facilities and healthcare services compared to rural regions. Many families move to cities to provide their children with higher-quality education and greater future opportunities. Access to hospitals and specialized medical services also attracts people to urban centers, especially in countries where rural healthcare is underdeveloped.

     However, rapid urbanisation brings about several challenges. Overcrowding in cities can lead to inadequate housing, strained infrastructure, and increased pollution. The expansion of urban areas often results in the loss of green spaces and agricultural land, impacting food production and the environment. Governments and city planners must address these issues to ensure sustainable urban growth.

     Despite these challenges, urbanisation has several positive aspects. Cities are often cultural melting pots, where diverse groups of people interact, leading to vibrant communities and innovation. The concentration of resources and talents in urban areas can drive economic growth and technological advancements.

Which of the following is NOT mentioned as a reason for urbanisation?

Trong những năm 1649- 1653, nước Anh theo thể chế chính trị gì?

Diễn biến xảy ra ở kì sau của quá trình giảm phân 1 như thế nào?

Chu trình Crep diễn ra trong bào quan nào?

Tìm tất cả các giá trị của tham số \(m\) để đồ thị hàm số \(y=\frac{2 x+1}{\sqrt{m x^{2}+1}}\) có hai đường tiệm cận ngang.

Mệnh đề nào sau đây là mệnh đề sai?

Phương trình tiếp tuyến của đồ thị hàm số \(y=\frac{2x+1}{x-1}\) tại điểm có hoành độ \(x=2\) là

Cho hai số thực dương \(a, b\) thỏa mãn \(\frac{1}{2} \log _{2} a=\log _{2} \frac{2}{b}\). Giá trị nhỏ nhất của biểu thức \(P=4 a^{3}+b^{3}-4 \log _{2}\left(4 a^{3}+b^{3}\right)\) được viết dưới dạng \(x-y \log _{2} z\), với \(x, y, z>2\) là các số nguyên, \(z\) là số lẻ. Tổng \(x+y+z\) bằng

Máy động lực công suất nhỏ có công suất:

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 phrase "fear of missing out" in paragraph 2 could be best replaced by ____.

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.

The word accelerating in paragraph 3 could be best replaced by _____.

Read the following passage 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.

Mountain Lions Amid Wildfires: A Struggle for Survival

Beth Pratt, the California director for the National Wildlife Federation, has spent her career protecting Los Angeles’ mountain lions. These top predators live in a rocky area surrounded by fancy houses and many roads. When wildfires destroy vast stretches of open land, the survival options for these animals become critically limited. “This is the LA area—these mountain lions can’t just move into the Kardashians’ backyard,” Pratt says, her voice filled with concern for the animals in such a difficult situation.

(I) The chaparral vegetation, covering about 10% of California, is one of the world’s most flammable ecosystems. (II) In Los Angeles, suburban sprawl intrudes on these areas, blocking wildlife escape routes. (III)Fires strip the land of food and shelter, transforming vibrant ecosystems into barren landscapes. (IV) Pratt highlights the urgency of the situation, explaining how areas that once supported life are now “taken out of commission,” leaving many species to starve or struggle for survival.

The consequences extend beyond wildlife. Wildfires have caused devastating human losses, with 88,000 people evacuated and a rising death toll of 25. Meanwhile, the non-human world suffers equally, particularly endangered species with limited ranges. Red-legged frogs, reintroduced into Santa Monica streams in 2014, are among the most affected, with their habitats repeatedly destroyed. The Woolsey Fire of 2018 was followed by mudslides that wiped out much of the region's delicate ecosystem, and scientists fear similar outcomes this time. California newts, reptiles, and snakes are also at high risk, while mammals and birds, although more likely to escape, face challenges in finding food and shelter as the ecosystem bounces back.

Despite the devastation, hope remains. The chaparral is a fire-adapted ecosystem, and life often endures beneath the soil. Seeds can survive and germinate quickly, with grasses sprouting weeks after the first rain. Shrubs may take up to a decade to recover, depending on rainfall. Prof. Stefan Doerr, an expert on wildfires, emphasizes the resilience of this landscape, noting its evolutionary adaptation to high-intensity fires occurring every 30 to 100 years. While the aftermath looks bleak, these fires play a role in maintaining biodiversity, offering a glimmer of hope for recovery.

Which of the following best summarizes the main point of the passage?

Thất bại của phong trào yêu nước cuối thế kỉ XIX ở Việt Nam đã để lại bài học gì? 

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.

Social Media: A Double-Edged Sword

Social media has become an (7) _____  part of modern life. While it connects people worldwide, it also poses challenges we must address.

Benefits:

Social media enables us to share knowledge, connect with friends, and promote businesses. Many people use it to explore (8) _____ exciting opportunities, from freelancing to e-learning.

Challenges:

However, overuse of social media can lead to addiction. People often find it hard to (9) _____ from their screens, affecting their productivity and health. Furthermore, misinformation spreads quickly on platforms, (10) _____risks to individuals and society.

Recommendations:

To make the most of social media, users should focus on reliable content and limit their time online. Effective content moderation policies are needed to create safer digital spaces. (11) _____ spending hours scrolling aimlessly, set time limits to achieve a balanced routine.

By following these steps, we can enjoy numerous benefits while avoiding its pitfalls. Remember, responsible use is key in the (12) _____ of this digital era.