Ở một loài thực vật, alen A quy định hoa đỏ trội hoàn toàn so với alen a quy định hoa vàng. Cho cây (P) có kiểu gen Aa tự thụ phấn thu được F₁ tiếp tục cho các cây F₁ tự thụ phấn thu được F₂. Biết rằng không có đột biến xảy rA. Tính theo lý thuyết, cây có kiểu hình hoa đỏ ở F₂ chiếm tỉ lệ:

Nội dung nào sau đây thuộc nội dung cơ bản về khoa học, công nghệ và môi trường của Hiến pháp?

Trong Một thời đại trong thi ca, Hoài Thanh đã nêu ra cách nhận diện tinh thần Thơ mới như thế nào?

Trong thiên nhiên cây tre có thể sinh sản bằng cơ quan nào?

Cho tam giác ABC có \(a = 4,b = 5,c = 7\). Bán kính đường tròn ngoại tiếp R của tam giác ABC bằng?

Tiếng sét và tia chớp được tạo ra gần như cùng một lúc, nhưng ta thường nhìn thấy chớp trước khi nghe thấy tiếng sét. Giải thích đúng là: 

Trong các phát biểu nào sau đây KHÔNG đúng về quy tắc an toàn khi làm việc với nguồn phóng xạ?

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question

Vietnam’s population is ageing quickly. In 2017, more than 10 per cent of the population will be 60 and older, and in 15-20 years the elderly will account for one third of the total population. This raises concerns about healthcare, welfare and pensions for the elderly at a time when Vietnam is focusing on economic integration and requires a large labor force. So far two solutions have been proposed: to loosen the two-child policy and to increase the retirement age to 58 for women and 62 for men. By ending the two-child policy the government expects to make up for the ageing population within the next 20 years. But its effect could be creating an uncontrollable boom in the Vietnamese population. When the government loosened the two-child policy in 2015 in a trial period, in the first 6 months of 2016 the third child birth rate increased remarkably by 7.5 per cent

Raising the retirement age has been proposed by the Ministry of Labor pending parliamentary evaluation in May 2017. While the policy is beneficial in utilizing the work experience of the elderly while creating savings in the pension budget, it also means fewer job prospects and promotion opportunities for younger generations. It is also not in the interest of all the elderly, especially the 70 per cent of Vietnam's labor force working in manual labor-intensive sectors such as agriculture, manufacturing and construction where working above the age of 50 can be dangerous and unproductive. Despite these drawbacks, raising the retirement age is still considered by policymakers as one of the key solutions to the ageing population problem in Vietnam. However, these are only temporary solutions.

The best title for this passage could be ________.

Phương pháp khoanh vùng (vùng phân bố) cho biết ý nghĩa gì?

Điền cụm từ thích hợp vào chỗ trống (….) trong khái niệm sau đây: “……..là hoạt động có mục đích, có ý thức của con người nhằm tạo ra các sản phẩm phục vụ cho các nhu cầu của đời sống xã hội”.

Hạn chế của nguồn lao động nước ta hiện nay là gì?

Đổi từ hệ nhị phân sang hệ thập phân cho số 111111₂?

Một chiếc cột dựng trên nền sân phẳng. Gọi O là điểm đặt chân cột trên mặt sân và M là điểm trên cột cách chân cột 30cm. Trên mặt sân, người ta lấy hai điểm A và B cách đều O là 40cm (A, B, O không thẳng hàng). Người ta đo độ dài MA và MB đều bằng 50cm. Chọn khẳng định đúng?

Hệ số biến dạng của hình chiếu trục đo vuông góc đều là:

Mark the letter A, B, C or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 23.

          AI (Artificial Intelligence) is revolutionizing the medical field by providing more accurate diagnoses and personalized treatment plans. Since its development, AI has become increasingly integrated into healthcare, (18) ___________. One of the most prominent examples is its use in medical imaging, where AI-powered systems are capable of detecting diseases, like cancer, with remarkable precision.

          AI systems are particularly valued for their ability to process vast amounts of data quickly, enabling doctors to focus on patient care rather than administrative tasks. These advancements have led to (19) ___________, allowing for better overall outcomes. Not only does AI reduce the potential for human error, but it also continuously improves through learning from new medical data.

          Medical AI systems have also (20) ___________. By analyzing genetic information and patient histories, AI can suggest potential treatment options that may have been overlooked by human experts. Moreover, these systems often lack the information needed to recommend the best treatment, ensuring that treatments are more effective and better suited to individual needs.

          Despite the many benefits, some critics argue that there are still ethical concerns about the widespread adoption of AI in healthcare. For example, (21) ___________ could lead to overreliance on machines, reducing the need for skilled medical professionals. However, proponents believe that as AI continues to evolve,  the medical field will revert to traditional methods By working alongside human experts, AI has the potential to transform healthcare, making it more efficient and accessible for all.

          In summary, the rise of AI in medicine is an exciting development that shows great promise. It is essential (22) ___________. As these technologies advance, doctors may struggle to trust AI in complex cases.

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

URBANISATION: A GROWING PHENOMENON

     Urbanisation is the process through which cities grow, and higher populations begin to inhabit urban areas. This phenomenon has accelerated significantly over the past few decades due to various factors. One of the primary drivers is the search for better employment opportunities. In rural areas, job prospects are often limited to agriculture and small-scale industries, which might not provide sufficient income. Consequently, people migrate to cities seeking better livelihoods and living standards.

     Additionally, urban areas offer more advanced educational facilities and healthcare services compared to rural regions. Many families move to cities to provide their children with higher-quality education and greater future opportunities. Access to hospitals and specialized medical services also attracts people to urban centers, especially in countries where rural healthcare is underdeveloped.

     However, rapid urbanisation brings about several challenges. Overcrowding in cities can lead to inadequate housing, strained infrastructure, and increased pollution. The expansion of urban areas often results in the loss of green spaces and agricultural land, impacting food production and the environment. Governments and city planners must address these issues to ensure sustainable urban growth.

     Despite these challenges, urbanisation has several positive aspects. Cities are often cultural melting pots, where diverse groups of people interact, leading to vibrant communities and innovation. The concentration of resources and talents in urban areas can drive economic growth and technological advancements.

In which paragraph does the writer discuss the benefits of urbanisation?

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

“I will come back early. I really will!”. She said.

Ở thực vật, nguyên tố dinh dưỡng khoáng thiết yếu nào là nguyên tố vi lượng?

Khoa thi đầu tiên ở nước ta được tổ chức dưới triều đại nào?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17. (1,25 point)

a. A further cause is a lack of affordable housing. Many poor or low-income people can’t afford a place to live because the houses are so expensive. 

b. What are the causes and what can we do to solve the problem?

c. As a result, they can’t have somewhere to live or end up staying on streets and become homeless. 

d. One of the main causes is  a lack of support network. Many people don’t have friends or family to help them in hard times with a small loan for example, and they can become homeless. 

e. These days, homelessness is real issue in society. There are many people who have to live on the streets because they have nowhere to go. 

Chọn ý đúng: Vì sao không thể xếp nước vào loại tài nguyên có thể bị hao kiệt ?