Một hạt nhân có số khối A, bán kính hạt nhân tính theo đơn vị fm được tính theo công thức

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.

Here are some ways to help reduce global warming. Which of these do you regularly do?

Don't use private cars. Your willingness to walk or cycle to nearby places can help reduce the emissions of carbon dioxide and also reduce your own carbon footprint. Use public transport. If travelling long distances, then use public transport rather than your car. However, if you carpool (travel together with a group of people in one car), then you are choosing to help ___(7)___ environment. If we travel with ___(8)___, we will use less petrol.

Make a decision to reduce, recycle, and reuse. Reduce waste by buying reusable products. Don't forget to recycle plastics, glass, and paper products. You may wish to reuse some of your old items to ___(9)___, too. Take unneeded ___(10)___ to a recycling centre.

Buy local goods. When you buy goods ___(11)___ from far-away places, it takes a lot of energy to ___(12)___ them to your area. This means that if you don't buy local food and products, then more emissions of carbon dioxide will happen during the transportation process.

(Adapted from English Discovery)

Cơ cấu tổ chức của bộ máy nhà nước Việt Nam gồm các cơ quan nào?

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 best paraphrases the underlined sentence: "It is clear that the internet is a minefield today and we all have to step very carefully in order not to get hurt."

Một đảo nhỏ xa xôi ngoài biển rộng

Vẫn tiếng làng tiếng nước của riêng ta

Tiếng chẳng mất khi Loa thành đã mất

Nàng Mỵ Châu quỳ xuống lạy cha già

 

Tiếng thao thức lòng trai ôm ngọc sáng

Dưới cát vùi sóng dập chẳng hề nguôi

Tiếng tủi cực kẻ ăn cầu ngủ quán

Thành Nguyễn Du vằng vặc nỗi thương đời

 

Trái đất rộng giàu sang bao thứ tiếng

Cao quý thâm trầm rực rỡ vui tươi

Tiếng Việt rung rinh nhịp đập trái tim người

Như tiếng sáo như dây đàn máu nhỏ

(Lưu Quang Vũ, “Tiếng Việt”, Gió và tình yêu thổi trên đất nước tôi, Nxb Hội Nhà văn, HN, 2010, tr. 104).

Ý nào sau đây biểu đạt ý nghĩa của câu thơ: “Tiếng chẳng mất khi Loa thành đã mất”?

Cho hàm số bậc ba \(f(x)\) có đồ thị như hình vẽ. Hỏi có bao nhiêu giá trị nguyên của tham số \(m\) để phương trình \(f[f(x)]=m\) có đúng 4 nghiệm phân biệt thuộc đoạn \([-1;2]\)?

Hai điện tích q₁ = 2.10^-6 C và q₂ = -8.10^-6 C lần lượt đặt tại hai điểm A và B với AB = 10 (cm). Xác định điểm M trên đường AB mà tại đó \({\overrightarrow E _2} = 4{\overrightarrow E _1}\)

Máy xát gạo thực hiện chức năng biến đổi vật liệu, biến gạo thô thành gạo đã qua chế biến. Tương tự, hệ thống truyền tải và phân phối điện thực hiện chức năng vận chuyển năng lượng từ nhà máy điện đến các hộ gia đình và doanh nghiệp, đảm bảo dòng điện lưu thông liên tục. Bên cạnh đó, các thiết bị bộ nhớ ngoài như USB đảm nhiệm chức năng lưu trữ thông tin, cung cấp không gian quan trọng để lưu trữ dữ liệu. Những hệ thống này đều đóng vai trò quan trọng trong việc đảm bảo thiết bị hoạt động trơn tru. Việc phân chia nhiệm vụ thành các chức năng cụ thể giúp máy móc và hệ thống nâng cao hiệu quả và năng suất trong nhiều lĩnh vực.

Phát biểu dưới đây đúng hay sai?

Read the following passage about studying abroad 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.

Successful students often do the followings while studying. First, they have an overview before reading. Next, they look for important information and pay greater attention to it (which often needs jumping forward or backward to process information). They also relate important points to one another. Also, they activate and use their prior knowledge. When they realize that their understanding is not good, they do not wait to change strategies. Last, they can monitor understanding and take action to correct or “fix up” mistakes in comprehension.

Conversely, students with low academic achievement often demonstrate ineffective study skills. [I] They tend to assume a passive role in learning and rely on others (e.g., teachers, parents) to monitor their studying. [II] For example, low-achieving students often do not monitor their understanding of content; they may not be aware of the purpose of studying; and they show little evidence of looking back or employing “fix-up” strategies to fix understanding problems. [III] Students who struggle with learning new information seem to be unaware that they must extend effort beyond simply reading the content to understand and remember it. [IV] 

Children with learning disabilities do not plan and judge the quality of their studying. Their studying may be disorganized. Students with learning problems face challenges with personal organization as well. They often have difficulty keeping track of materials and assignments, following directions, and completing work on time. Unlike good studiers who employ a variety of study skills in a flexible yet purposeful manner, low-achieving students use a restricted range of study skills. They cannot explain why good study strategies are important for learning; and they tend to use the same, often ineffective study approach for all learning tasks, ignoring task content, structure or difficulty.

Which of the following best paraphrases the underlined sentence in paragraph 2:  

Hình ảnh càng nhiều điểm ảnh thì sao?

Chất nào dưới đây thuộc đisaccarit?

Quốc gia nào phát triển mạnh năng lượng tái tạo?

Cho biết: Yếu tố nào có ý nghĩa quyết định đến sự phát triển và phân bố các ngành giao thông vận tải ?

Read the following passage about the Pathways from Today's Actions to Tomorrow's World 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.

As we stand at the crossroads of environmental decision-making, the actions we take today will shape our world in 2050. Scientists warn that we're skating on thin ice with current consumption patterns and carbon emissions. Global temperatures could rise by 2-4 degrees Celsius unless significant changes occur within the next decade. Many countries have pledged to achieve carbon neutrality by 2050, but these promises require immediate implementation. Individual choices in transportation, energy usage, and consumption can collectively influence whether future generations inherit a sustainable planet or face severe climate consequences.

[I] Technological innovation represents our greatest hope for addressing environmental challenges by 2050. [II] Renewable energy sources like solar and wind are becoming increasingly affordable, potentially replacing fossil fuels entirely within thirty years. [III] Electric vehicles may dominate transportation networks, while vertical farming could transform food production in urban areas. [IV] However, these technological solutions must be developed and deployed equitably to avoid creating new disparities between wealthy and developing nations.

Social structures will undergo dramatic transformation by 2050 as demographic shifts reshape communities worldwide. Aging populations in developed countries will necessitate new approaches to healthcare, retirement, and social support systems. Meanwhile, climate migration may force millions to relocate from vulnerable coastal and drought-prone regions. Education systems must evolve to prepare our students for jobs that don't yet exist, emphasizing their adaptability and lifelong learning. Cities will need to become more resilient, incorporating green spaces and sustainable infrastructure to support growing populations.

Economic models must fundamentally change by 2050 to balance prosperity with environmental responsibility. The traditional focus on continuous growth may shift toward measuring success through wellbeing indicators rather than GDP alone. Circular economy principles will likely replace linear production models, with products designed for reuse and recycling. Resource-sharing platforms may become more prevalent, reducing individual consumption while maintaining living standards. Companies implementing genuinely sustainable practices will thrive, while those clinging to environmentally harmful methods may disappear entirely. The transition presents both challenges and opportunities for businesses willing to embrace innovation and sustainability.

Which of the following best summarises the passage?