Bản vẽ kĩ thuật thi công:

Các ion khoáng xâm nhập vào tế bào rễ cây theo cơ chế thụ động có đặc điểm ra sao?

I. Các ion khoáng đi từ môi trường đất có nồng độ cao sang tế bào rễ có nồng độ thấp.

II. Nhờ có năng lượng và enzim, các ion cần thiết đi ngược chiều nồng độ, vào tế bào rễ.

III. Không cần tiêu tốn năng lượng.

IV. Các ion cần thiết đi ngược chiều nồng độ nhờ có chất hoạt tải.

Phương án đúng là:

1. Do you find yourself yawning all day at school? You probably need more sleep. However, it is not just how much sleep you get that is important. What you do before bedtime also has a huge effect on how you feel the next day. If you spend time chatting to someone on social media, or reading a book on your e- reader, you are not alone.

2. All devices' screens give out a large amount of blue light, which affects the body's production of the sleep hormone, melatonin, which can change your sleep patterns. So it is not just getting to sleep that becomes hard, but the quality of your sleep also suffers. The result is that you can wake up several times during the night, and have difficulty getting up in the morning.

3. Sleep is food for the brain, so not sleeping well can be a severe problem for anyone, especially for teenagers, because their brains are still developing. When you do not sleep well, it can be difficult to concentrate at school, which makes it harder to learn and get good grades. It can also affect your mood, making you feel sad or anxious.   

4. So, it is clear you should not use your phone before you go to sleep. Why not leave it in another room? Nothing on social media is so important that it cannot wait a few hours! You should rediscover paper books and enjoy feeling tired and sleepy before bedtime rather than wondering why your best friend has not liked your photo! How will you wake up? You do not have to use the alarm on your phone. Go and buy yourself an old-fashioned alarm clock! The negative effects that screen time is having on sleep have been in the news a lot recently, so manufacturers of smartphones and tablets have added a feature to the mobile devices that can help reduce these. Most new phones have a night-time setting that changes the colour of the screen so that it gives out less blue light. If you really cannot avoid going onto social media at bedtime, think about turning on this setting on your phone.

Which of the following can be inferred from the reading passage?  

CHỦ ĐỀ: TẠI SAO CON NGƯỜI KHÔNG BỊ KHÍ QUYỂN ĐÈ ÉP?

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

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d0afa01ca011

Và trả lời câu hỏi sau:

Mức áp suất không khí tác động lên con người tương đương với trọng lượng của:

Cho sơ đồ phản ứng: Fe + H₂SO_{4 đặc nóng}→ Fe₂(SO₄)₃ + S + H₂O. Sau khi cân bằng với hệ số nguyên tối giản, hệ số của H₂SO₄ trong phản ứng là

Mùa đông ở các nước theo dương lịch tại bán cầu Bắc được tính từ ngày bao nhiêu?

Ở Mỹ Latinh, loại khoáng sản nào sau đây có trữ lượng lớn nhất?

Có mấy cách để thu nhỏ, phóng to ảnh?

Mỗi phát biểu sau đúng hay sai:

Nhiệm vụ của li hợp là:

Ai là người ký vào Hiến pháp?

Để một cuộc cách mạng tư sản bùng nổ và thắng lợi cần có tiền đề cơ bản nào sau đây?

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.

EMBRACE DIVERSITY

⮚     In a multicultural world, we encounter different cultures every day. While some may be familiar, (7) _________ can offer entirely new perspectives on life and society. To truly appreciate diversity, we must (8) _________ to people from various backgrounds, engaging with them to learn about their traditions, values, and ways of life.

⮚     A major benefit of living in a multicultural society is the (9) _________ of our daily experiences and personal growth. We are constantly learning from each other. By participating in activities organized by various communities, you can help create understanding (10) _________ people of different backgrounds. This will foster unity and collaboration.

⮚     In a multicultural world, (11) _________ plays a key role in ensuring peace and harmony across cultures, fostering mutual respect and shared values. To make the most of this diversity, it is essential to have (12) _________ of respect for others, as understanding and tolerance go hand in hand with progress.

Read the following passage about Building Understanding Across Nations 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.

In our interconnected world, cultural ambassadors play a vital role in bridging the gaps between different nations and peoples. These dedicated individuals and groups serve as links between cultures, fostering mutual understanding and respect through various activities and programs. Their mission is to showcase their own cultural heritage while learning about and appreciating others, creating pathways for meaningful dialogue and lasting connections across borders.

Cultural ambassadors employ numerous methods to achieve their goals. They organize traditional festivals and art exhibitions that display unique customs, allowing visitors to experience different cultures firsthand. Language exchange programs enable people to communicate more effectively, while cultural workshops teach traditional crafts, music, and dance. These ambassadors also utilize digital platforms to reach wider audiences, sharing stories and traditions through social media and online events that connect people from different corners of the world.

Despite their important work, cultural ambassadors face several challenges in their mission. Stereotypes and prejudices can create barriers to understanding, while language differences sometimes lead to misunderstandings. Limited resources and funding may restrict their activities, and political tensions between nations can complicate their efforts. However, these dedicated individuals persist in their work, believing that personal connections and shared experiences can overcome these obstacles and promote harmony among different communities.

Looking ahead, the role of cultural ambassadors becomes increasingly significant in our global society. Their efforts to build bridges between nations contribute to reducing conflicts and fostering peace. Through their continued dedication to promoting cross-cultural understanding, these ambassadors help create a more inclusive and connected world where differences are celebrated rather than feared. This ongoing process of cultural exchange remains essential for building a future based on mutual respect and cooperation.

The word “ambassadors” in paragraph 1 is OPPOSITE in meaning to _________.

Một chiếc đu quay có bán kính \(75\) m, tâm của vòng quay ở độ cao \(90\) m, thời gian thực hiện mỗi vòng quay của đu quay là \(30\) phút.

Nếu một người vào cabin tại vị trí thấp nhất của vòng quay, thì sau \(20\) phút quay, người đó ở độ cao bao nhiêu mét? (làm tròn kết quả tới hàng phần mười).

Nguyên nhân nào sau đây dẫn đến thắng lợi của Cách mạng tháng Tám năm 1945 ở Việt Nam?

Read the following passage about lifelong learning 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.

[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]

One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.

Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.

In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).

Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.

(Adapted from The Importance of Lifelong Learning by Knowles, Smith, Johnson, and others)

The word "enriching" in paragraph 3 is CLOSEST in meaning to ____.

Phát biểu nào sau đây không đúng khi nói về các nguyên tố hóa học có trong tế bào?

Dựa vào đồ thị độ dịch chuyển - thời gian của một chuyển động thẳng đều có thể xác định được vận tốc của chuyển động bằng công thức

Các đối tượng có thể có trong phim hoạt hình là?