Dãy số \( - \,\frac{1}{3};\, - \,1; - \frac{5}{3}; - \,\frac{7}{3};\, - \,3;...\) là cấp số cộng với 

Tại một thời điểm, trạng thái các đầu vào x₁, x₂ và đầu ra y như hình vẽ dưới đây. Cổng logic phù hợp là

Read the passage and mark the letter A, B, C or D to answer the following questions.
Volunteering offers many of the same social benefits, with the added bonus of helping others and developing useful skills to put on your CV. Plus, students are in a unique position to help, suggests Tom Fox. "They can take their enthusiasm and excitement for opportunities and share their passions, subject knowledge and experience with people." The idea of giving up time for nothing might seem impractical at first, especially once the pressures of study and coursework or exams begin to mount up. However, Michelle Wright, CEO of charity support organization Cause4, suggests seeing volunteering as a two-way street. "I think it is fine for undergraduates to approach volunteering as a symbiotic relationship where doing good is just one part of the motivation for reaching personal and professional goals."
Katerina Rudiger, head of skills and policy campaigns at the Chartered Institute of Personnel and Development (CIPD), says: "Volunteering can be a valuable way of gaining that experience, as well as building confidence, broadening your horizons, becoming a better team player and developing those all- important 'employability skills' such as communication and decision making." Amanda Haig, graduate HR manager, agrees that volunteering can help your employment prospects. "Volunteering can demonstrate positive personality traits and skill sets, such as proactivity, and teamwork," she says.
A positive side-effect of volunteering is improving your time at university by getting involved in the local community. Leaving the student bubble can make your time as an undergraduate much more varied. At Bath Spa University, more than 1,000 students volunteered over the past year, doing everything from working on local environmental projects to helping in schools or assisting the elderly. ”Quite often there can be a divide between students and permanent residents," says students' union president Amy Dawson, "but if students invest a little time now, they will be giving something back to the local community and will reap the benefits in the future."
“You might also find that volunteering helps your studies if you choose the right program. At Lancaster, volunteering is linked into academic modules in some cases", explains Fox. "This has multiple wins. Students get to apply their learning in the classroom and share their interests with children in local schools or community organizations, while schools gain skilled students with a passion for a subject that enthuses their pupils."

The word “gaining” in paragraph 2 can be replaced by____________.

Read the following passage about the Exploring The Universe 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.

Science is a vast and fascinating field that seeks to understand the natural world and the universe beyond[I]. It encompasses various disciplines, including physics, chemistry, biology, and astronomy[II]. Each of these areas contributes to our understanding of complex phenomena, [III]. For instance, scientific research has led to significant breakthroughs in medicine, renewable energy, and environmental conservation[IV]. In this essay, we will explore the impact of science on our lives, particularly focusing on space exploration.

One of the most intriguing aspects of science is space exploration. Humans have always looked to the stars, wondering what lies beyond our planet. The launch of satellites and manned missions has allowed us to gather valuable information about the cosmos. For example, NASA's Mars Rover has provided insight into the potential for life on other planets. Through meticulous research and data collection, scientists can analyze soil samples and atmospheric conditions, paving the way for future explorations.

Space exploration also raises critical questions about our existence and the future of humanity. As we continue to advance technologically, the prospect of colonizing other planets becomes more plausible. This endeavor could serve as a solution to the challenges we face on Earth, such as overpopulation and resource depletion. However, ethical considerations must guide these efforts. We must ensure that we do not repeat the mistakes of history, such as the exploitation of natural resources and indigenous populations.

Moreover, scientific advancements have enabled us to develop technologies that enhance our understanding of the universe. Telescopes and space probes allow us to observe distant galaxies, study black holes, and uncover the mysteries of dark matter. Each discovery leads to new questions, further fueling our curiosity and drive for knowledge. The concept of the multiverse, for instance, challenges our understanding of reality and pushes the boundaries of scientific thought.

In addition to exploring the universe, science plays a crucial role in addressing pressing issues on Earth. Climate change, for example, is a significant concern that scientists are actively investigating. Through climate models and data analysis, researchers can predict future trends and propose solutions to mitigate the effects of global warming. Public awareness and education are essential in fostering a collective response to environmental challenges.

As we reflect on the wonders of science, it is clear that its contributions extend far beyond mere knowledge acquisition. Science empowers us to make informed decisions about our health, environment, and future. By fostering a culture of curiosity and critical thinking, we can inspire future generations to continue exploring the unknown.

Which of the following is TRUE according to the passage?

Cho tập hợp A = {x ∈ ℝ| (x² – 1)(x² + 2) = 0}. Các phần tử của tập A là:

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.

UNBREAKABLE SPIRIT: AN EVENING WITH NICK VUJICIC

We are thrilled to announce that (1) ______ Nick Vujicic will be visiting our community for an exclusive seminar (2) ______ to inspire, empower, and create lasting change. This once-in-a-lifetime event will offer attendees the opportunity to hear Nick's powerful story of resilience, faith, and perseverance firsthand. Born without limbs, Nick has transformed his circumstances into a source of (3) ______. He has spoken to millions of people around the globe, spreading messages of hope, and the courage to turn obstacles (4) ______ opportunities. Nick’s dynamic and engaging approach has (5) ______ a lasting impact on audiences of all ages and backgrounds. Participants will gain practical strategies for overcoming challenges, achieving personal and professional goals. This event is organized (6) ______ personal growth, motivate change, and cultivate unity. Join us for an unforgettable experience. Space is limited, so be sure to reserve your spot today!

Liên Hợp Quốc được thành lập nhằm mục đích nào sau đây?

Tại 13 thuộc địa Anh ở Bắc Mỹ trước cách mạng, người dân phải tuân theo các đạo luật

Khảo sát thời gian chơi thể thao trong một ngày của 40 học sinh lớp 10A giáo viên thu được một mẫu dữ liệu ghép nhóm như sau:

Khoảng tứ phân vị của bảng số liệu ghép nhóm trên là

Thuế là một khoản nộp ngân sách nhà nước có tính chất gì?

Hòa tan \(\text23,2\) gam một mẫu quặng magnetite (chỉ chứa \(\text{F}{{\text{e}}_{3}}{{\text{O}}_{4}}\) và tạp chất trơ) bằng dung dịch sulfuric acid loãng dư. Lọc bỏ tạp chất không tan, thêm nước cất vào dịch lọc, thu được \(200\text{ }\!\!~\!\!\text{ mL}\) dung dịch X. Để chuẩn độ \(5\text{ }\!\!~\!\!\text{ mL}\) dung dịch X cần dùng \(17,5\text{ }\!\!~\!\!\text{ mL}\) dung dịch \(\text{KMn}{{\text{O}}_{4}}0,02\text{M}\). Phần trăm khối lượng của \(\text{F}{{\text{e}}_{3}}{{\text{O}}_{4}}\) trong mẫu quặng magnetite xấp xỉ là:

Thực hiện giao thoa Young với hai bức xạ \(λ_1 = 0,4μm; λ_2 = 0,5μm\). Biết khoảng cách giữa hai khe sáng là \(2mm\). Khoảng cách từ mặt phẳng chứa hai khe tới màn M là \(D = 2m\). Khoảng cách từ vân tối thứ 3 của bức xạ \(λ_1\) và vân sáng thứ 5 của bức xạ \(λ_2\) ở cùng một phía so với vân trung tâm là bao nhiêu mm? (viết dưới dạng phân số a/b)

Một vật nhỏ dao động điều hòa theo một quỹ đạo có chiều dài 8 cm. Biên độ dao động của vật là

Một electron chuyển động dọc theo đường sức của một điện trường đều. Cường độ điện trường E = 200 (V/m) vận tốc ban đầu của electron là 3.10⁵(m/s). Tại lúc vận tốc bằng không thì nó đã đi được đoạn đường bao nhiêu?

Cho bảng số liệu:

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(Nguồn: Tổng cục Thống kê)