Cho hàm số \(f(x) = \cot x,x \ne k\pi ,\forall k \in \mathbb{Z}.\)

Cho hàm số \({\rm{f}}({\rm{x}}) = \frac{{{\rm{ax}} + {\rm{b}}}}{{{\rm{cx}} + {\rm{d}}}}\) với \({\rm{ac}} \ne 0,{\rm{ad}} - {\rm{bc}} > 0.\)

Nhận định nào sau đây đúng với công nghiệp của Cộng hòa Nam Phi?

Trật tự thế giới hai cực I-an-ta có biểu hiện nào sau đây?

Cho nguyên tố X có số hiệu nguyên tử là 18, vị trí của nguyên tố trong bảng tuần hoàn các nguyên tố hoá học là

Phát biểu nào sau đây không đúng với môi trường nhân tạo?

Read the following passage about the Second Acts That Inspire 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.

Life often presents us with unexpected challenges that force us back to the drawing board. Whether due to personal setbacks, career changes, or unforeseen circumstances, the courage to begin again can lead to remarkable transformations. Many inspiring individuals have shown that it's never too late to reinvent oneself and pursue new dreams. Throughout history, countless people have overcome seemingly impossible situations through sheer determination.

[I] Take J.K. Rowling, for instance. Before becoming a literary sensation, she was a struggling single mother living on welfare. [II] Her determination eventually paid off when her books became a global phenomenon, proving that setbacks can become stepping stones to success. [III] This remarkable turnaround demonstrates how resilience and unwavering belief in oneself can overcome seemingly insurmountable obstacles. Despite facing depression and financial hardship, she never gave up on her dreams. [IV]

Colonel Harland Sanders' story is another testament to the power of starting anew. At the age of 65, when most people contemplate retirement, he found himself struggling financially after his restaurant failed. Instead of giving up, he traveled across America, sleeping in his car while pitching his chicken recipe to restaurant owners. His recipe for success wasn't just about the perfect blend of herbs and spices; it was about persistence and determination. After facing over 1,000 rejections, he finally established Kentucky Fried Chicken, which grew into a global empire. His unwavering spirit and dedication inspired generations of entrepreneurs worldwide.

These inspiring stories remind us that failure is not final, but rather a chance to redirect our path. Every setback carries the seed of an equal or greater opportunity, and sometimes the end of one chapter is simply the beginning of a better one. The key lies in having the courage to take that first step, even when the future seems uncertain. As these remarkable individuals have shown, it's never too late to rewrite your story and create a powerful second act. Their journeys teach us that persistence and courage ultimately lead to success.

Where in paragraph 2 does the following sentence best fit?

Against all odds, she persevered through numerous rejections and continued writing her Harry Potter manuscript in local cafes.

The wealthy man________by three masked men has been safely rescued.

Xác định ý đúng: Môi trường tự nhiên được cho có vai trò rất quan trọng đối với xã hội loài người nhưng không phải là nguyên nhân quyết định sự phát triển của xã hội loài người vì?

Chủ thể nào trong các trường hợp dưới đây có hành vi cạnh tranh lành mạnh?

- Trường hợp 1. Công ty D tìm mọi cách để mua được thông tin chiến lược kinh doanh của doanh nghiệp Y - đối thủ cạnh tranh trực tiếp.

- Trường hợp 2. Công ty K luôn quan tâm đến việc tạo sự thân thiện, tin tưởng của khách hàng thông qua việc cung cấp sản phẩm có chất lượng cao kết hợp với quan tâm, chăm sóc, ưu đãi khách hàng.

Cho hàm số $y = f(x)$ thoả mãn $\displaystyle \displaystyle \int f(x) \mathrm{d}x=\mathrm{e}^{2x}+C$. Khẳng định nào sau đây đúng?

Để cải tạo đất chua, người ta sử dụng biện pháp nào sau đây?

Read the following leaflet/notice and choose the option that best fits each of the numbered blanks from 7 to 12.

Threats to Wildlife

Wildlife around the world faces numerous threats, (7) __________ of which are caused by human activity. Understanding these dangers is the first step toward protecting the (8) __________ of life on our planet.

- Habitat Destruction: Urban expansion, agriculture, and logging destroy natural habitats, leaving animals without a place to live, breed, and find food.

- Poaching and Illegal Wildlife Trade: Poaching and illegal wildlife trade have (9) __________ species such as elephants, rhinos, and tigers to the verge of extinction.

- Pollution: Pollution from plastics, chemicals, and oil spills has caused serious harm to wildlife, especially when they ingest plastic, get caught in waste, or suffer (10) __________ harmful chemicals in their environment.

- Climate Change: Rising temperatures, extreme weather, and shifting ecosystems due to climate change are disrupting the natural (11) __________. Species that rely on specific climates, such as polar bears and coral reefs, have had their habitats (12) __________ as a result.

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 NOT mentioned as a potential change by 2050?

Năm 1995, Việt Nam có hoạt động đối ngoại nào sau đây?

Tại sao Quốc hội và Hội đồng nhân dân được gọi là cơ quan đại biểu của nhân dân?

Phần mềm chạy trên Internet có đặc điểm gì?

Cho mệnh đề chứa biến $P(x):$ "$x>x^3$".

Đâu không phải là một hoạt động của nền kinh tế nước ta?