Một viên gạch đá hoa hình vuông cạnh $40$ cm được thiết kế như hình bên dưới. Diện tích mỗi cánh hoa bằng

Nội dung nào sau đây là một trong những điểm sáng tạo của Nguyễn Ái Quốc trong quá trình vận động thành lập Đảng Cộng sản Việt Nam? 

Năm 1997, quốc gia nào sau đây gia nhập tổ chức ASEAN?

Em hãy cho biết cuộn cảm ngăn cản dòng điện nào?

Chiến tranh Trịnh - Nguyễn diễn ra từ

Đâu là phương án đúng: Theo phương pháp chiếu góc thứ nhất, vị trí hình chiếu bằng?

Read the passage below and choose A, B, C or D to answer each question from 641 to 645.

Cities develop as a result of functions that they can perform. Some functions result directly from the ingenuity of the citizenry, but most functions result from the needs of the local area and of the surrounding hinterland (the region that supplies goods to the city and to which the city furnishes services and other goods). Geographers often make a distinction between the situation and the site of a city. Situation refers to the general position in relation to the surrounding region, whereas site involves physical characteristics of the specific location. Situation is normally much more important to the continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is much more likely to continue. Chicago, for example, possesses an almost unparalleled situation: it is located at the southern end of a huge lake that forces east-west transportation lines to be compressed into its vicinity, and at a meeting of significant land and water transport routes. It also overlooks what is one of the world’s finest large farming regions. These factors ensured that Chicago would become a great city regardless of the disadvantageous characteristics of the available site, such as being prone to flooding during thunderstorm activity.

Similarly, it can be argued that much of New York City’s importance stems from its early and continuing advantage of situation. Philadelphia and Boston both originated at about the same time as New York and shared New York’s location at the western end of one of the world’s most important oceanic trade routes, but only New York possesses an easy-access functional connection (the Hudson- Mohawk Lowland) to the vast Midwestern Hinterland. This account does not alone explain New York’s primacy, but it does include several important factors. Among the many aspects of situation that help to explain why some cities grow and others do not, original location on a navigable waterway seems particularly applicable. Of course, such characteristics as slope, drainage, power resources, river crossings, coastal shapes, and other physical characteristics help to determine city location, but such factors are normally more significant in early stages of city development than later.

What is the topic of the passage?

Nước nào dưới đây có trữ lượng sắt lớn nhất Mỹ La tinh?

Bà C mua dưa hấu với giá 12.000 đồng trên 1kg. 12.000 đồng là

Vật nhỏ của một con lắc lò xo dao động điều hòa theo phương ngang, mốc thế năng tại vị trí cân bằng. Khi li độ của vật có độ lớn bằng một nửa biên độ thì tỉ số giữa động năng và thế năng của vật là

Read the following passage about Preserving Today's Soundscapes for Future Generations 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.

Sonic time capsules save today's sounds for future people. Scientists capture everyday sounds like streets, birds, and children playing in parks around the world. These recordings help us remember our world before changes. Cities are losing unique sounds as life becomes similar everywhere. Old machines, music, and natural sounds might disappear if not saved. Many important cultural sounds are already lost forever because nobody thought to record them when they still existed.

Sound collectors use microphones to record in different places. They visit forests, oceans, cities, and villages to capture soundscapes throughout different seasons and times of day. They store sounds in digital libraries for years. Museums have rooms for listening to past sounds. These experiences help people understand history in ways books cannot. Some researchers travel to remote locations to record indigenous languages and traditional ceremonies before they vanish from our collective memory.

Climate change is changing world sounds. Melting glaciers, endangered animals, and disappearing languages need saving before they're gone. Researchers believe future people will want to know how our world sounded. These capsules will be important records, like photographs. Scientists study how sounds affect human health. The sounds of nature can reduce stress and improve mental health, which makes preserving natural soundscapes even more important for future generations who may live in highly urbanized environments.

Community projects invite people to record daily sounds. Children learn to listen carefully to the world around them and identify sounds that matter to their community. Old people share recordings from their childhood. People feel emotions when listening to these collections. Artists create music using everyday recordings. These projects help communities protect special sounds for the future. Some cities now have sound preservation policies that protect unique acoustic environments just as they would protect historic buildings or natural landscapes from development.

In which paragraph does the writer explain how sounds are collected and stored?

a. In short, small steps like reducing plastic use, conserving water, and recycling can collectively make a significant impact on the health of our planet and future generations.

b. Consequently, as these practices become more popular, communities around the world are becoming increasingly aware of environmental issues and their role in addressing them.

c. Environmental awareness, sparked by education and activism, has grown significantly in recent years, creating a shift in public attitudes toward sustainability.

d. Individuals everywhere are now more conscious about their lifestyle choices, opting for eco-friendly products and cutting down on wasteful habits.

e. Many people are adopting sustainable practices, like using renewable energy and supporting green businesses, to contribute positively to the planet.

Trong các cặp số sau đây, cặp nào là nghiệm của bất phương trình \(2x + 3y < 1\) 

PHẦN I. Thí sinh trả lời từ câu 1 đến câu 12. Mỗi câu hỏi thí sinh chỉ chọn một phương án.

Cho cấp số cộng \(\left( {{u_n}} \right)\) với \({u_1} = 8\) và công sai \(d = 3\). Giá trị của \({u_2}\) bằng

Nghệ thuật kháng chiến đặc sắc của nhà Trần là gì?

Cho $A$, $B$, $C$ là ba tập hợp được minh họa bằng biểu đồ ven như hình vẽ.

Phần gạch sọc trong hình vẽ là tập hợp nào sau đây?

Có thể thực hiện bao nhiêu kiểu phép lai khác nhau về kiểu gen nếu chỉ xét một gen có 2 alen (A, a) tồn tại trên cả NST giới tính X và Y?