Số hiệu nguyên tử cho biết thông tin nào sau đây?

Trong các câu sau, có bao nhiêu câu là mệnh đề?

a) Cố lên, sắp tới rồi!

b) Số $15$ là số nguyên tố.

c) Tổng các góc của một tam giác bằng $180^{\circ}.$

d) $x$ là số nguyên dương.

Dân cư thành thị nước ta hiện nay

Read the following passage about Singapore Science Centre 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.

The Singapore Science Centre, situated on a sprawling six-hectare site in Jurong, offers a captivating way to explore the wonders of science and technology. Here, visitors can engage with interactive exhibits that make learning both fun and memorable. Clap your hands, and colorful bulbs will light up; spin a wheel, and it will activate a fan. This engaging environment sparks curiosity and fuels the imagination of both children and adults.

The centre boasts more than four hundred exhibits across various fascinating topics, including solar radiation, communication, electronics, mathematics, nuclear energy, and evolution. These exhibits are designed to foster interest in science and technology among the public, making the centre a hub for educational exploration.

Notably, it is the first science centre to be established in Southeast Asia. Officially opened in 1977, the centre now welcomes an average of 1,200 visitors daily, highlighting its enduring popularity and educational value.

The exhibits are thoughtfully arranged across four main galleries: the Lobby, Physical Sciences, Life Sciences, and Aviation. To ensure a fresh and engaging experience, the exhibits are renewed annually, encouraging repeat visits. Visitors are encouraged to interact with the exhibits, as opposed to traditional “hands-off” policies in most museums. Here, pushing buttons, turning cranks, or pedaling mechanisms are all part of the fun and learning experience.

The Discovery Centre, added in 1985, is specially designed for children aged three to twelve, providing an exciting space for young minds to explore and experiment. Most recently, a stone-age exhibit was introduced, showcasing extinct animals and early human life, offering insights into prehistoric times.

With its interactive displays and immersive environment, the Singapore Science Centre continues to inspire a love for science and discovery, making it an unforgettable destination for learners of all ages.

The word its in paragraph 5 refers to______.

Choose A, B, C or D that has the CLOSEST meaning to the underlined word/phrase in each question.

People believe that cities of the future will increase the general well-being of individuals and societies.

Để chuẩn bị cho các tiết mục văn nghệ, lớp 10B cử ra 12 bạn tham gia tiết mục múa và 7 bạn vào tiết mục hát. Biết rằng có 3 bạn tham gia cả hai tiết mục và 22 bạn không tham gia văn nghệ. Số học sinh lớp 10B là?

Các cách nào dưới đây được dùng để nhận biết sự có mặt của nước trong tế bào?

Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions.

Dear Anna,

a. I’m grateful for the advice you gave me about the project; it was really helpful.

b. I’ll keep you updated on my progress and let you know how things go.

c. I’ve made significant improvements thanks to your suggestions.

d. Let’s catch up over coffee sometime next week if you’re free.

e. Thanks again for always being supportive.

Best regards,

Emily

Read the following passage about Reducing Electronic Waste 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 hyper-connected world, our constant need for the newest electronic devices has led to a growing environmental crisis. Electronic waste, or e-waste, is one of the fastest-growing waste streams globally, with millions of tons discarded annually. A digital detox, (18)_________, can be an effective environmental practice that helps address this issue.

(19)_________, the current e-waste crisis might have been avoided. The devices that we carelessly discard often contain valuable materials that could be recycled and harmful components that contaminate soil and water. Many consumers replace functioning smartphones and laptops simply because newer models are available, not realizing the environmental impact of their decisions. The manufacturing process of new electronics requires significant resources and energy; (20)_________.

Practicing digital detox not only improves mental health but also decreases the demand for new products. (21)_________; however, if consumer demand decreases, production might slow down as well. Individuals who commit to using their devices for longer periods contribute significantly to waste reduction, and they often discover that older models fulfill their needs perfectly well.

The electronic waste problem requires both individual action and systemic change. We can create a world embracing sustainable principles, (22)_________, through our participation in digital detox practices and mindful consumption.

Công thức tính điện năng tiêu thụ của một đoạn mạch là

Ở ngô có bộ NST 2n = 20. Thể một nhiễm của ngô có bao nhiêu NST trong mỗi tế bào sinh dưỡng?

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 is TRUE according to the passage?

Lực nào sau đây có thể là lực hướng tâm

CHỦ ĐỀ: GIẢI NOBEL HÓA HỌC 2020

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 21)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d00ddd794efd

Và trả lời câu hỏi sau:

Điền một từ không quá HAI tiếng từ bài đọc vào chỗ trống:

Theo đoạn [1], công nghệ chỉnh sửa gen CRISPR/Cas9 được ứng dụng và tạo ra tác động trong các ngành khoa học nghiên cứu về [.......].

Cho bảng số liệu sau:

GIÁ TRỊ XUẤT KHẨU HÀNG HÓA CỦA LIÊN MINH CHÂU ÂU GIAI ĐOẠN 2014 - 2022

(Nguồn: Trang Thống kê của Tổ chức Thương mại Thế giới)

Theo bảng số liệu trên, dạng biểu đồ nào dưới đây thể hiện được tốc độ tăng trưởng giá trị xuất khẩu hàng hóa của Liên minh châu Âu giai đoạn 2014 - 2022?

Đọc đoạn trích sau đây và trả lời câu hỏi.

“Trận thắng trên sông Bạch Đằng là cơ sở cho việc khôi phục quốc thống. Những chiến công đời Đinh, Lê, Lý, Trần sau này còn nhờ vào uy danh lẫm liệt ấy để lại”.

(Quốc sử quán triều Nguyễn, Khâm định Việt sử thông giám cương mục, Tập 1, Nxb Giáo dục, HN, 1998, tr.211)

Nội dung nào sau đây phản ánh đúng ý nghĩa của “việc khôi phục quốc thống” đối với lịch sử Việt Nam được đề cập trong đoạn trích?

Choose A, B , C or D to complete the dialogue.

David: I apologize for missing your birthday party yesterday. I got caught up at work and lost track of time.

Mia: ______

Hình thức cho vay đòi hỏi người vay phải có tài sản thế chấp có giá trị tương đương với lượng vốn cho vay gọi là cho vay gì?

Việc phe Hiệp ước không hưởng ứng lời kêu gọi hòa bình của Chính phủ Xô viết đã dẫn đến hệ quả gì:

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.

How the Generation Gap Plays Out in the Workplace

As a recruiter, I am in constant communication with executive clients and HR colleagues. I regularly (7) ________ on candidates I’ve placed, to see how they are getting on in their new roles. Here are some of the important generational differences I see that can lead to potential (8) ________ if not properly understood: 

Communication styles

• The young generation is more (9) ________, quick to offer constructive criticism, individualistic, with a more casual approach.

• Gen X values hard work and long hours, a/k/a ‘The Grind’ – they are more skeptical, formal, and uncompromising.

Leadership styles

• The young generation is extremely open-mindeD. They resist micromanagement, and resent pressure. (10) ________ factor that sets them apart is their emphasis on work-life balance.

• (11) ________, their Generation X supervisors, on the other hand, are intensely focussed on the organisational processes that brought the company success; they tend to prioritise (12) ________ and the bottom line.