Một học sinh xác định suất điện động E của một nguồn điện (E,r) được nối với một biến trở R thành mạch kín. Biết hiệu điện thế U giữa hai cực của nguồn điện được đo bằng một Vôn kế. Dựa vào kết quả thực nghiệm đo được trên hình vẽ, học sinh này xác định được suất điện động của nguồn điện là:

Tọa độ tâm I và bán kính R của đường tròn \((C):(x−1)^2+(y+3)^2=16\) là:

Đọc đoạn tư liệu sau đây:

"... Sức hấp dẫn của di sản đã tạo động lực cho phát triển du lịch, mang lại nhiều lợi ích về thu nhập, việc làm và phát triển kinh tế - xã hội địa phương. Cụ thể như: Quần thể di tích cố đô Huế, năm 2017 đón 3 triệu lượt khách du lịch, trong đó có 1,8 triệu khách du lịch quốc tế, thu được 320 tỉ đồng riêng từ vé tham quan; Phố cổ Hội An đón 1,96 triệu lượt khách, thu về 219 tỉ đồng riêng từ vé tham quan. Các di sản nổi tiếng như Hạ Long, Phong Nha - Kẻ Bàng, Tràng An, Yên Tử, núi Bà Đen,... những năm gần đây không ngừng được đầu tư phát triển....”.

(Nguồn: Hà Văn Siêu, "Di sản văn hóá với phát triển du lịch", trang thông tin điện tử Tổng cục Du lịch Việt Nam, https://www.vietnamtourism.gov.vn/post/26992)

Nhiệt độ ngoài trời T (tính bằng ^oC) vào thời điểm t giờ trong một ngày ở thành phố X được cho bởi hàm số \(T = 22 + 4\sin \left( {\frac{\pi }{{12}}t - \frac{{5\pi }}{6}} \right)\). Để bảo quản các tác phẩm nghệ thuật, hệ thống điều hòa của một bảo tàng tự động bật khi nhiệt độ ngoài trời từ 24^oC trở lên. Dựa vào đồ thị của hàm số sin, xác định khoảng thời gian t trong ngày \(\left( {0 \le t \le 24} \right)\) hệ thống điều hòa được bật?

Read the following passage about food addiction 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.

Few people would disagree that one of the world's most popular dishes is pizza. Twenty-two-year-old Zack certainly wouldn't. He would eat a variety of pizza-based items, including homemade pizza, precooked microwave pizza, and even pizza leftovers from the night before. He was consuming 800kg of pizza a year. As a child, Zack had eaten a wide variety of food. But he became addicted to pizza when he started secondary school. American school meals have often been criticised for the large amount of fast food present on the menu, and pizza is the star dish. Zack even spent all his pocket money on slices of pizza.

Naturally, Zack's family worried about his high-calorie, low-vitamin diet. So did Zack. In an attempt to break his addiction, Zack agreed to appear on a TV programme called Freaky Eaters. Its aim was to encourage food addicts to beat their addictions with the help of a psychologist and nutritionist. It wasn't easy. He had to eat a fish dish, while his brother sat in front of him enjoying... a pizza! However, Zack met the challenge and has never eaten pizza again.

Seventeen-year-old Stacy Irvine's friends visit her and discover that she has been rewarded thousands of free toys from fast food restaurants as a regular customer. Stacy's mother often gave her two-year-old girl a portion of fried chicken in a McDonald's restaurant. [I] Since then, Stacy has refused to eat anything else except for pieces of fried chicken, and as a result, her diet has created serious health. She has been warned that if she doesn't change her diet, she will die. [II] Stacy once collapsed due to lack of vitamins and nutrients and needed to be hospitalised. [III] She insisted that Stacy adopt a healthier lifestyle. However, worryingly, Stacy's mother said that while Stacy was beginning to understand the seriousness of her situation, she couldn't eat anything else but chicken nuggets. [IV]

Twenty-year-old Hanna Little was keen on chips. The only thing that Hanna consumed for fifteen years was one plate of chips after another. Not surprisingly, a diet that contained few nutrients and an excess of fat and carbohydrates could only have negative consequences. And it did because not only did Hanna develop health problems, but she also had to leave her job after collapsing at work. At five, Hanna became addicted to chips and refused to eat fruits and vegetables despite her mother's efforts. Hanna says that she was terrified of tasting the flavour of different types of food and she would feel anxious just at the idea of doing it. Parties, picnics and barbecues with friends and family used to be a nightmare. Furthermore, Hanna was soon seen as 'odd' by her friends' parents.

It wasn't until the age of sixteen that Hanna realised she had Selective Eating Disorder (SED). Despite this new knowledge, no solution was found. It wasn't until she lost her job before she started eating normally. Hanna sought therapy from psychologist Felix Economakis, who used hypnosis, a treatment that none of the doctors that she had seen before had mentioned, to get her to eat fruit after one one-hour session, and since then she has been willing to eat anything.... including chips!

(Adapted from Friends Global)

Which of the following best summaries paragraph 4?

Phát biểu nào sau đây là đúng?

H đã tư vấn cho bạn mình đến vay tiền ở một ngân hàng uy tín. Đến thời hạn, bạn của H không thể trả nổi tiền vì kinh tế gặp khó khăn nên đã bỏ trốn để không phải trả số tiền đó. Trong trường hợp trên, bạn của H đã vi phạm nghĩa vụ và trách nhiệm nào của người vay trong quan hệ tín dụng?

Tam giác ABC có $\hat{A}=68°12\text{'},\hat{B}=34°44\text{'},$ AB = 117. Độ dài cạnh AC là khoảng?

Cuộc khởi nghĩa của nhân dân Lào trong khoảng thời gian 1901 – 1903 do ai lãnh đạo?

Read the following passage about the Reimagining International Cooperation 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.

Global environmental governance is changing how countries work together. Nations now understand that pollution, climate change, and resource problems cross borders. Traditional agreements between countries are not enough anymore. New approaches include businesses, local communities, and citizen groups working with governments. This all-hands-on-deck approach helps create better solutions for our planet. Many successful projects show that when different groups cooperate, they can solve difficult environmental problems that single countries cannot fix alone.

Environmental governance faces many challenges today. [I] Political differences between nations often slow down important decisions. [II] Some countries worry that strict environmental rules might hurt their economic growth. Despite these obstacles, new technologies are helping countries monitor environmental changes better. [III] Satellite data and computer models allow scientists to track forest loss, ocean pollution, and climate patterns. [IV] This information helps leaders make smarter decisions about protecting natural resources.

The future of environmental governance depends on innovation. Digital platforms now connect environmental experts around the world instantly. Young people are bringing fresh ideas through social media campaigns and protest movements. Indigenous communities contribute valuable traditional knowledge about sustainable living practices. Financial institutions are creating new ways to fund green projects in developing countries. These combined efforts are creating a more flexible and responsive system of global cooperation that can adapt to changing environmental conditions more quickly than old-fashioned diplomatic channels.

Effective environmental governance requires balance between global standards and local solutions. While international agreements provide important frameworks, communities need freedom to implement approaches that fit their unique situations. Successful governance models respect cultural differences while maintaining scientific standards. Education plays a crucial role in building public support for environmental policies. When citizens understand environmental issues, they make better choices and hold their leaders accountable. The most promising path forward combines strong international institutions with energetic local action to create lasting environmental solutions.

The word “instantly” in paragraph 3 is OPPOSITE in meaning to _________.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

As a small child, he was used to _________ alone in the house for several hours.

Cho một hình nón có thiết diện qua trục là tam giác đều có diện tích bằng \(2\sqrt{3}\).

Mỗi phát biểu sau là đúng hay sai?

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

It is (A) interested (B) to compare the early stylized art forms (C) of ancient civilizations (D) with the modem abstract forms of art.

Con đường thoát hơi nước qua khí khổng có đặc điểm như thế nào?

Choose A, B, C or D that has the CLOSEST meaning to the given pair of sentences in each question.

He finally achieved his goal of becoming a published author. It required years of dedication and hard work.

Có mấy loại kế hoạch tài chính cá nhân phù hợp lứa tuổi học sinh?

Ưu điểm công nghệ sấy thăng hoa:

Năm 1077, quân dân nhà Lý kháng chiến thắng lợi hoàn toàn chống quân xâm lược nào?