Phương án nào sau đây thuộc không công nghệ truyền thông không dây?

Khi nuôi tôm, cá với mật độ cao người ta thường dùng máy sục khí vào nước nuôi nhằm

Trước khi khởi động động cơ, cần:

Phát biểu nào sai khi nói về các tác nhân vật lí và cách thức gây bệnh của chúng?

Đâu là ý đúng: Lựa chọn cây trồng phù hợp với từng loại đất giúp?

Trong thí nghiệm giao thoa sóng trên mặt nước, hai nguồn A, B dao động cùng pha với cùng tần số . Tại một điểm M cách các nguồn A, B lần lượt là , thì sóng có biên độ cực đại. Giữa M và đường trung trực của AB không có dãy cực đại khác. Tốc độ truyền sóng trên mặt nước là

Trong các câu sau, có bao nhiêu câu là mệnh đề?

a) Tổng các góc trong một tam giác bằng \(180{{}^{\circ }}.\)

b) \(x\) là một số nguyên.

c) Bạn có chăm học không?

d) Tổng hai cạnh của một tam giác lớn hơn cạnh thứ ba.

Trong nền kinh tế thị trường, các hoạt động nào sử dụng các sản phẩm được sản xuất ra để thoả mãn nhu cầu vật chất và tinh thần của con người?

Choose A, B , C or D to complete the dialogue.

Tom: Can I give you a ride home?

Anna: ______

asdasd

Lực đàn hồi của lò xo

Ngành nào sau đây là thuộc lĩnh vực khoa học xã hội và nhân văn?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the questions from 36 to 42.

In the distance, an enormous, menacing-looking tornado can be seen. Luckily, the area has been evacuated and there is no one to be seen. Then, out of the blue, a few kilometres away a van appears and races down the road straight towards the tornado. Both in their twenties, Joe Hammond and his wife Emma are heading for it. Their purpose is to monitor various characteristics of a tornado, such as its speed, direction, and temperature. The storm chasers are planning to plant themselves directly in the path of the tornado to amass as much information as they can.

Joe and Emma are dedicated storm chasers. They began to chase storms as university students, and in recent years they have been travelling vast distances around the USA in their efforts to locate tornadoes. Bizarre as it may sound, they are not the only people to do it. During the tornado season, hundreds of people cross Tornado Alley, an area between South Dakota and Texas. Their vehicles are almost unrecognisable, as they are concealed underneath an assortment of electronic equipment and contain all manner of communication devices.

When asked why people are so fascinated by tornadoes, Joe said some tornado chasers relish the challenge, while others might just love the exhilaration of being in a treacherous situation. Some experienced chasers have even turned their hobby into a business and set up travel agencies offering tourists trips which guarantee a ringside view of the twisters. It seems, however, that people like Joe and Emma also make a pivotal contribution to the study of tornadoes.

The fact is, although there are about a thousand tornadoes in the USA each year, meteorologists still do not fully comprehend why they happen. This is partly because the research done by radars in laboratories is not as efficacious as mobile equipment deployed directly at the scene. Thus, some research meteorologists even go storm chasing themselves. It seems that the thrill, combined with a desire to understand nature, is the reason why people like Joe and Emma chase tornadoes.

(Adapted from Venture into First for Schools)

Which of the following can be inferred from the passage? 

Phát biểu nào sau đây là sai?

Đâu là ý đúng: Đối với việc hình thành các điểm du lịch, yếu tố được cho có vai trò đặc biệt quan trọng là?

The word career in line 4 is closest in meaning to ___

Phát biểu nào không đúng với hoạt động chính của Quỹ Tiền tệ Quốc tế?

Dân số thế giới tăng hay giảm là do đâu?

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.

In which paragraph does the writer mention the economic benefits of green living practices? 

Hành vi dưới đây đúng hay sai?

Với con người hai bước của quá trình giải giải quyết một vấn đề là gì?