Hai dao động điều hòa có phương trình lần lượt là $x_1=4\cos\left(3\pi t-\dfrac{\pi}{4}\right)$ (cm) và $x_2=6\cos\left(3\pi t-\dfrac{\pi}{6}\right)$ (cm). Nhận định nào dưới đây là đúng?

"Có chiến lược kinh doanh rõ ràng, và biết xác định mục tiêu ngắn hạn, dài hạn". Đó là biểu hiện cho năng lực nào của người kinh doanh?

Read the following passage about green living 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

          Green living refers to a lifestyle that promotes sustainability and environmental consciousness. This way of life encourages individuals to make choices that reduce their carbon footprint and conserve natural resources. Practices such as recycling, using renewable energy sources, and reducing waste are fundamental aspects of green living. By adopting these practices, individuals can contribute to the preservation of the environment and promote a healthier planet for future generations.

          One significant component of green living is the use of renewable energy sources. Solar, wind, and hydroelectric power are examples of renewable energy that can replace fossil fuels. Using renewable energy reduces greenhouse gas emissions and dependence on non-renewable resources. Additionally, renewable energy sources are often more sustainable and have less impact on the environment.

          Another important aspect of green living is sustainable consumption. This involves choosing products that are environmentally friendly and responsibly sourced. For example, buying locally produced food reduces the carbon footprint associated with transportation. Moreover, opting for products made from recycled materials helps conserve resources and reduce waste.

          Green living also emphasizes the importance of conserving water and energy. Simple actions such as turning off lights when not in use, fixing leaks, and using energy-efficient appliances can significantly reduce energy and water consumption. These practices not only benefit the environment but also save money on utility bills.

          Education and awareness play a crucial role in promoting green living. By educating individuals about the benefits of sustainable practices and how to implement them, communities can foster a culture of environmental responsibility. Awareness campaigns, workshops, and educational programs are effective ways to encourage people to adopt green living practices.

Which of the following is TRUE according to the passage? 

Những chất nào sau đây tham gia cơ chế điều hòa nồng độ glucose trong máu?

Một số vòi nước thường có hai tai vặn. Tác dụng chính của các tai vặn này là:

Hành động nào sau đây là cơ hội để phần mềm độc hại xâm nhập vào máy tính?

Trong trường hợp dưới đây, anh K đã thực hiện nghĩa vụ đóng loại thuế nào?

"Anh K có tổng thu nhập mỗi tháng là 20 triệu đồng, trừ các khoản miễn thuế và giảm trừ gia cảnh, anh K phải nộp thuế 150 000 đồng/ tháng".

Chiến thắng nào quyết định cuộc kháng chiến chống quân Xiêm giành thắng lợi?

Một chất điểm dao động điều hòa. Khi vật chuyển động từ vị trí biên về vị trí cân bằng thì

Đâu là ý đúng: Hô hấp oxi hóa ở sinh vật nhân thực có mức hiệu quả xấp xỉ?

Điều gì làm thị trường lao động thay đổi?

Muốn tìm hiểu được nội dung của bản đồ, trước hết cần phải nghiên cứu kĩ yếu tố nào sau đây?

Giá trị dương lớn nhất để hàm số \(y = \sqrt {5 - 4x - {x^2}} \) xác định là: 

Một máy tạo rung được sử dụng để tạo ra sóng trên dây.

Từ hình vẽ ta thấy trên dây có:

CHỦ ĐỀ 3

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 43)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d0a01a0e4114

Và trả lời câu hỏi sau:

Dựa theo Mô hình vỏ hạt nhân, lựa chọn những hạt nhân thần kì kép trong số các đồng vị hạt nhân sau?

Theo Đacuyn, phân li tính trạng của vật nuôi, cây trồng là hiện tượng như thế nào?

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 31 to 40.

[I] Social media has become a dominant force in modern communication, offering a range of benefits and challenges. [II] It has revolutionized the way people interact, share information, and even form relationships. [III] While these platforms offer opportunities for connection and expression, they also have their drawbacks. [IV] For instance, excessive use of social media has been linked to a range of negative effects, including mental health issues, social isolation, and decreased productivity. [V] However, when used responsibly, social media can also offer a variety of positive outcomes, such as the ability to stay connected with loved ones, network professionally, and access valuable information and resources.

One of the major benefits of social media is its ability to keep people connected. For example, individuals who live far apart can maintain close relationships through regular communication on these platforms. Social media also facilitates professional networking, allowing users to connect with potential employers or clients, and enabling companies to promote their products and services to a global audience. Additionally, platforms like Facebook, Twitter, and Instagram provide a space for people to share ideas, opinions, and creative work, fostering a sense of community and collaboration.

Despite these advantages, there are serious concerns about the negative impact of social media, particularly on mental health. Studies have shown that excessive social media use can contribute to feelings of anxiety, depression, and loneliness. This is often attributed to the unrealistic portrayals of life that are commonly shared on these platforms, leading to comparisons that can make individuals feel inadequate or left out. Furthermore, constant exposure to negative news or online bullying can exacerbate these feelings and contribute to long-term psychological stress.

Another issue with social media is its potential to distract people from their daily responsibilities. With notifications constantly popping up and endless streams of content to scroll through, individuals may find it difficult to focus on tasks such as work, school, or personal obligations. This can result in decreased productivity and a lack of attention to important matters.

Ultimately, the impact of social media depends on how it is used. If individuals are mindful of their usage patterns and take steps to limit their time on these platforms, they can enjoy the benefits of staying connected and informed without the negative consequences. Parents, educators, and mental health professionals can also play a role in helping young people develop healthy habits and manage their social media use effectively.

The phrase "stay connected with " in paragraph 1 is CLOSEST in meaning to _______.

Choose A, B, C or D to answer the question.

You’ve noticed that whenever you take a cold drink out of the refrigerator, water droplets form on the outside of the glass. What is the likely cause?

Ô tô gây ra những tiêu cực nào sau đây?

Phương án nào sau đây không thuộc một trong những chức năng của thị trường?