Vì sao khi không có hoạt động tiêu dùng thì nền kinh tế sẽ ngưng trệ, không thể phát triển?

Biết rằng gia đình cô Xuân có hai người con. Xác suất hai người con đều là con gái biết rằng người con đầu là con gái là:

Choose the word(s) CLOSEST in meaning to the underlined word(s).
We were pretty disappointed with the quality of the food.

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.

Đặt vào hai đầu tụ một hiệu điện thế 5 V thì tụ tích được một điện lượng 10^-5 C. Điện dung của tụ là

Phương pháp nào dưới đây không phảilà phương pháp học tập hóa học nhằm phát triển năng lực hóa học?

Tập xác định của hàm số \(y = \frac{{x + 1}}{{{x^2} - 4}}\) 

Véc tơ cường độ điện trường tại mỗi điểm có chiều

Ý kiến nào sau đây không đúng khi bàn về vấn đề lạm phát?

Đại lượng nào sau đây là đại lượng vectơ?

Văn bản nào sau đây không thuộc văn bản quy phạm pháp luật?

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.

The word "Their" in paragraph 3 refers to:

Chọn cặp từ/ cụm từ thích hợp nhất điền vào chỗ trống.

Độc lập là điều tuyệt vời ___________ việc tin rằng bản thân không cần sự giúp đỡ của bất kì ai thực sự có thể cản trở bạn, ___________ việc cố gắng làm mọi thứ một mình có thể khiến bạn cô đơn, căng thẳng và ngăn bạn học hỏi từ người khác, hạn chế bạn xây dựng các mối quan hệ có ý nghĩa.

Thiết bị nào dưới đây trong những thiết bị sau là thiết bị thông minh?

Cho các chất: glucose \(\left( {{{\rm{C}}_6}{{\rm{H}}_{12}}{{\rm{O}}_6}} \right)\), fructose \(\left( {{{\rm{C}}_6}{{\rm{H}}_{12}}{{\rm{O}}_6}} \right)\), maltose \(\left( {{{\rm{C}}_{12}}{{\rm{H}}_{22}}{{\rm{O}}_{11}}} \right)\), saccharose \(\left( {{{\rm{C}}_{12}}{{\rm{H}}_{22}}{{\rm{O}}_{11}}} \right).\) Có bao nhiêu chất phản ứng được với thuốc thư Tollens sinh ra bạc?

Uỷ ban nhân dân có chức năng gì?

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.

In which paragraph does Jean Twenge discuss the emotional impact of screen time on teens?

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

Hình ảnh dưới đây mô tả cấp độ tổ chức nào của thế giới sống?

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.