Python được dùng để làm gì?

Trong các hoạt động kinh tế cơ bản không bao gồm hoạt động nào sau đây?

Bản Hiến pháp đầu tiên của nước ta được ban hành năm:

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.

Who are you?

On 6 June 2011, the media reported the kidnapping of a female Syrian-American blogger called Amina Arraf. Regarded as a daring political rebel, the 35-year-old had gained popularity for her blogs protesting the lack of freedom in Syria. Yet, only two days later, it was discovered that Amina had never existed. She was a fictional character created by Tom MacMaster, a forty-year-old American PhD student at the University of Edinburgh.

MacMaster's invention is an example of sock puppetry: the use of false identities to deceive others. (I). The false identity is known as a sock puppet, and its creator, a puppet master. (II). MacMaster created Amina to express his views on Middle Eastern affairs without offending other Americans. (III). Writing as Amina gave him the authority to say what he wanted. (IV).  

At the turn of the millennium, Debbie Swenson created Kaycee Nicole, a fictional teenage girl suffering from terminal cancer. Her blog, Living Colours, described Kaycee’s struggle, attracting millions of readers. When Kaycee 'died' on 14 May 2001, her fans were devastated. Their distress turned to anger when they discovered that Kaycee was not real. Swenson had developed the character to gain attention and sympathy.

While Amina and Kaycee were used to meet their creators' needs, other identities have been invented for profit. American gun advocate John Lott made up a fake student, Mary Rosh, to defend his writing online and give him positive reviews. Mystery writer RJ Ellory fabricated a team of sock puppets to praise his own books and tear into those of his rivals. British historian Orlando Figes lost credibility when he had to publicly apologise for doing the same.

Yet none of these stories compare to large-scale sock puppetry today. The New York City Police Department has false identities on social media to catch criminals. The US military is believed to use sock puppets to track potential terrorists. It is clear that the internet is a minefield today and we all have to step very carefully in order not to get hurt.

Which of the following is NOT a reason for creating sock puppets?

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

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

Cây không sử dụng được nitơ phân tử N2 trong không khí vì

Lớp \(10\;A\) có 20 học sinh nam và 25 học sinh nữ. Có bao nhiêu cách chọn một bạn làm lớp phó lao động?

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.

     Autonomous vehicles, which were once the stuff of science fiction, are now becoming a reality. Tesla, for instance, (18) ______. A month later, the company showcased its fully self-driving car in California and has continued to expand its fleet ever since. At one of these events, Tesla’s vehicle received a safety award from the National Highway Traffic Safety Administration in 2020, further validating its technology. During a presentation at the Consumer Electronics Show in 2021, Tesla highlighted its commitment to safety and innovation.

  The Tesla Model S is one of the most advanced electric vehicles (19) ______. Clearly, Tesla and other manufacturers are at the forefront of transforming the automotive industry. (20) ______. The vehicles are equipped with various sensors, cameras, and AI algorithms.

  (21) ______. These technologies enable the cars to navigate complex environments, such as city streets and highways, with minimal human intervention. This is a significant leap toward a future where autonomous driving becomes the norm.

   Thanks to continuous advancements in technology, (22) ______. Consumers can look forward to safer and more efficient transportation solutions.

Khi nhập dữ liệu cho bảng có khóa ngoài, dữ liệu của khóa ngoài đó phải là dữ liệu liên kết đến loại khóa nào trong bảng tham chiếu khác?

Read the following advertisement 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.

Discover Our Luxurious Eco-Friendly Yoga Mats!

Are you looking for the (1)________yoga mat? 

 Our mats are made from natural materials that are not only sustainable but also incredibly durable.

Experience the comfort of our thick blue (2)_________. It provides the perfect surface for all your yoga needs, whether you’re a beginner or an expert.

Many customers have shared how our mats have transformed their practice, (3)__________ them to achieve greater balance and flexibility. Join our community and see the difference! You can show yoga (4)________your friends with our mats every day.

(5)_________advantage of this opportunity to enhance your yoga experience!

Loving (6)_________ yoga is essential for maintaining a healthy lifestyle, and using our mats will help you achieve that.

Read the following passage about lifelong learning 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.

In today’s rapidly changing world, lifelong learning has become more important than ever. ___(18)___. To stay relevant and competitive in the job market, individuals must continuously acquire new skills and knowledge.

One of the key benefits of lifelong learning is personal growth. ___(19)___. By exploring new subjects and hobbies, individuals can expand their horizons and discover new passions.

Lifelong learning can also lead to professional advancement. ___(20)___. By staying up-to-date with the latest trends and technologies, individuals can increase their value to employers and advance their careers.

However, lifelong learning can be challenging. ___(21)___. Balancing work, family, and personal commitments can make it difficult to find time for learning.

To make the most of lifelong learning, it is essential to set clear goals and create a personalized learning plan. ___(22)___. By breaking down larger goals into smaller, achievable steps, individuals can stay motivated and make progress.

Chọn ý đúng: Khi so sánh về thành tế bào của sinh vật nhân sơ và sinh vật nhân thực, nhận định nào đúng?

Cho dãy số có các số hạng đầu là: \(\frac{1}{4};\frac{1}{{{4^2}}};\frac{1}{{{4^3}}};\frac{1}{{{4^4}}};\frac{1}{{{4^5}}};...\) Số hạng tổng quát của dãy số này là?

Tam thức \(y = – x^2 – 3x – 4\) nhận giá trị âm khi và chỉ khi

Một máy tạo rung được sử dụng để tạo ra sóng trên dây.

Tần số của máy tạo rung là 60Hz. Khi đó, vận tốc sóng truyền truyên dây là:

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 23 to 30.

SCREEN TIME: MENTAL HEALTH MENACE OR SCAPEGOAT?

    "Have smartphones destroyed a generation?" Jean Twenge - a psychology professor at San Diego State University - asked in her controversial book, iGen. In the book, she argues that those born after 1995 are facing "a mental-health crisis", and she believes it can be linked to growing up with their noses pressed against a screen. Her newest study provides more support for that connection, showing that teens who spent more than an hour or two a day interacting with their gadgets were less happy on average than those who had more face time with others.

    Twenge's conclusions have come up against criticism in the past. Some have accused her work of oversimplifying or overlooking data that may tell a slightly different story. Twenge recognises that her study suggests only a link between screen use and psychological well-being. A possible explanation is that kids are running to their screens to escape from the things in life that are making them unhappy. However, the surveys can't say whether screen time directly changes teens' mental health, the research states.

    Philanthropist Melinda Gates, whose three children were also born after 1995, wrote in The Washington Post, "phones and apps aren't good or bad by themselves, but for adolescents who don't yet have the emotional tools to overcome life's problems, they can aggravate the difficulties of growing up."

    At the same time, she said, kids are learning on their devices and connecting in novel ways. Other studies have explored the connection between social media and isolation and how "likes" activate the brain's reward centre. Some analyses have found that moderate use of these technologies is not harmful in itself and can even improve children's social skills and build emotional strength.

Which of the following best paraphrases the underlined sentence in paragraph 4?

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).

Which of the following best paraphrases the underlined sentence in paragraph 4?

Cho mệnh đề chứa biến: "$P(x) \, : \, x < x^2$". Trong các mệnh đề sau, mệnh đề nào sai?

Điều nào sau đây bị giảm mạnh trong các vectơ plasmit sau khi chèn DNA ngoại sinh?

Ngô Tử Văn là người như thế nào?