Sự ưu việt của máy tính thể hiện ở nội dung nào sau đây?

Trong không gian với hệ tọa độ Oxyz, cho \(\vec{i}, \vec{j}, \vec{k}\) lần lượt là các vecto đơn vị nằm trên các trục tọa độ \(\mathrm{Ox}, \mathrm{Oy}, \mathrm{Oz}\) và \(\vec{u}\) là một vecto tùy ý khác \(\overrightarrow{0}\). Tính \(\mathrm{T}=\cos ^2(\vec{u}, \vec{i})+\cos ^2(\vec{u}, \vec{j})+\cos ^2(\vec{u}, \vec{k})\)?

a. Chris: That's a long time! Don't you want your own space?

b. Emma: I have to share my bedroom with my sister until I'm 16.

c. Emma: Yes, but my parents say it's good for us to learn to share.

Trong bảng tuần hoàn, chu kỳ nhỏ là những chu kỳ nào sau đây?

Trong các nhận định dưới đây về hiệu điện thế, nhận định nào không đúng?

Sentence rewriting: Immediately after the last bell chimed, the students hastily left the classroom for summer vacation.

Lực ma sát nghỉ

Read the following passage about world festivals and mark the best answer to the questions from 11 to 18. 

     World festivals have a big impact on young people today. Festivals such as Christmas, Diwali, Halloween, and Chinese New Year are celebrated across the globe, bringing people together. Young people especially enjoy these events because they offer a chance to have fun, learn about different cultures, and develop a global mindset.

     Festivals help young people appreciate diversity. Attending a festival from another culture teaches them new traditions, food, music, and art. For example, attending the Rio Carnival or the Holi Festival of Colors can give young people an exciting experience of new cultures. They learn to respect and understand people from different backgrounds, which is important in today’s world.

     Another impact is that festivals allow young people to express themselves creatively. Many festivals include costumes, dances, and music that encourage self-expression. For instance, during Halloween or a music festival like Coachella, young people often wear creative outfits or costumes that reflect their personalities. This makes them feel confident and allows them to experiment with new styles.

    Festivals also offer opportunities for young people to connect with others. Meeting people at festivals, whether in person or online, helps them build friendships and networks. Social media plays a big role in this, as many young people post about their experiences, spreading awareness of the festivals they attend.

     Overall, world festivals provide many learning and social experiences for young people, helping them grow into more open-minded and creative individuals. 

Which of the following best paraphrases the sentence in paragraph 3 below?

"Young people often wear creative outfits or costumes that reflect their personalities."

Để quan sát được hình dạng kích thước của tế bào thực vật, cần sử dụng dụng cụ nào sau đây?

Yếu tố nào sau đây thể hiện rõ rệt nhất sự khác biệt giữa mạng LAN và Internet trong bối cảnh sử dụng và quản lý dữ liệu?

Chọn ý đúng: Nhân tố được cho có vai trò quyết định đến sự phát triển của xã hội loài người là?

Trên vùng mã hóa của 1 gen của vi khuẩn xảy ra đột biến thay thế một cặp nuclêôtit ở triplet thứ 13. Biết rằng đây không phải là dạng đột biến vô nghĩa. Nhận định nào dưới đây là đúng?

Cho hai tập hợp $A=\left[ -4;1 \right]$ và $B=\left[ -3;m \right]$. Tất cả các giá trị thực của tham số $m$ để $A\cup B=A$ là

Lực ma sát nghỉ có độ lớn phụ thuộc vào

Sử học được hiểu là gì?

Cho hàm số \(y=f(x)\) có bảng biến thiên như hình vẽ:

Đồ thị hàm số \(y=|f(x-2001)-2019|\) có bao nhiêu điểm cực trị?

Muốn quan sát hình dạng và kích thước tế bào thực vật, chúng ta cần dùng dụng cụ nào sau đây?

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.

Glow Up with Radiance – Your Beauty, Your Power!

Looking for the secret to flawless skin? Introducing GlowUp, the ultimate cosmetic brand that enhances your natural beauty with the finest ingredients. Our products are designed to keep your skin (1) ______ all day long, giving you a fresh and radiant look.

Each item in our collection is crafted with (2) ______, ensuring the best results. Our innovative serums, known to bring out your inner glow, work deep (3) ______ your skin for a lasting effect.

With GlowUp, you never have to worry about harsh chemicals. Our products are made by organic extracts, (4) ______ your skin healthy and nourished. Say goodbye to dull skin and hello to a glowing complexion!

Join thousands of happy customers who trust GlowUp to (5) ______ their beauty routine effortlessly. Don’t wait – it’s time (6) ______ yourself with the best skincare on the market!

Read the following passage about the Reimagining International Cooperation 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.

Global environmental governance is changing how countries work together. Nations now understand that pollution, climate change, and resource problems cross borders. Traditional agreements between countries are not enough anymore. New approaches include businesses, local communities, and citizen groups working with governments. This all-hands-on-deck approach helps create better solutions for our planet. Many successful projects show that when different groups cooperate, they can solve difficult environmental problems that single countries cannot fix alone.

Environmental governance faces many challenges today. [I] Political differences between nations often slow down important decisions. [II] Some countries worry that strict environmental rules might hurt their economic growth. Despite these obstacles, new technologies are helping countries monitor environmental changes better. [III] Satellite data and computer models allow scientists to track forest loss, ocean pollution, and climate patterns. [IV] This information helps leaders make smarter decisions about protecting natural resources.

The future of environmental governance depends on innovation. Digital platforms now connect environmental experts around the world instantly. Young people are bringing fresh ideas through social media campaigns and protest movements. Indigenous communities contribute valuable traditional knowledge about sustainable living practices. Financial institutions are creating new ways to fund green projects in developing countries. These combined efforts are creating a more flexible and responsive system of global cooperation that can adapt to changing environmental conditions more quickly than old-fashioned diplomatic channels.

Effective environmental governance requires balance between global standards and local solutions. While international agreements provide important frameworks, communities need freedom to implement approaches that fit their unique situations. Successful governance models respect cultural differences while maintaining scientific standards. Education plays a crucial role in building public support for environmental policies. When citizens understand environmental issues, they make better choices and hold their leaders accountable. The most promising path forward combines strong international institutions with energetic local action to create lasting environmental solutions.

The word “they” in paragraph 4 refers to _________.

Các nguyên tố thuộc cùng nhóm IIIA thì nguyên tử của chúng đều có