Cho hình chóp tứ giác \(S.ABCD\), \(AC\) và \(BD\) cắt nhau tại \(O\). Giao tuyến của hai mặt phẳng \(\left( SAC \right)\) và \(\left( SBD \right)\) là đường thẳng?

Hội nghị I-an-ta (2-1945) diễn ra trong bối cảnh

Nhân tố nào ảnh hưởng đến sự phát triển và phân bố của ngành bưu chính viễn thông?

Read the following advertisement/school announcement and 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 10 to 15.

ANNOUNCEMENT OF SCHOOL YEAR-END PARTY

- The School Youth Union would like to announce:

+ All students (13) _______ to be present at 19:00 on May 29.

+ Each class is to prepare a performance for the Talent Show. Each performance should not exceed 5 minutes.

+ Each class is to (14) _______ one student to take part in the “King and Queen of the Night” event.

- (15) _______ you have any questions, please contact your class monitor.

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. Additionally, choosing eco-friendly products and supporting renewable energy sources, such as solar or wind power, contributes to a greener planet. 

b. Next. planting trees helps reduce carbon dioxide levels and improves air quality. 

c. First, simple actions like reducing plastic use, recycling, and conserving water can make a significant difference.

d. Therefore, it’s important for individuals, businesses, and governments to work together to preserve natural resources, reduce pollution, and combat climate change for future generations. 

e. Protecting the environment is crucial for ensuring a healthy and sustainable future.

Kết quả của chương trình sau là gì?

a = "Hello"
b = "world"
 c = a + " " + b
print(c)

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 following questions from 31 to 40.

Biting into a ripe, juicy fruit brings a smile to many people’s faces. But eating that same fruit a week before it is ripe probably wouldn’t be as enjoyable! Unripe fruits are often hard and bitter, but that serves a purpose. The hard exterior of an unripe fruit protects the developing seed inside. After a seed fully develops inside the fruit, the fruit changes color, softens, and gets sweeter to become more attractive to animals and humans. These organisms eat the fruit and spread its seeds, ensuring the plant’s survival and regrowth.

But how does a fruit ripen? The ripening process involves many complex chemical reactions. When a fruit ripens, it goes through a chemical change. A chemical change happens when bonds within molecules break, and the atoms that once formed them regroup into new molecules. Chemical changes are irreversible. Once a fruit ripens, it cannot become unripe again.

One molecule responsible for this chemical change is ethylene. Ethylene (C2H4) is a colorless gas made up of carbon and hydrogen atoms. (I). It is a naturally occurring molecule in the atmosphere. (II). It is also an important plant hormone. (III). Plants release ethylene through the growing tips of roots, flowers, and ripening fruit. (IV). Although ethylene serves other purposes in plants, one of its main purposes is to trigger the chemical reactions that cause fruits to ripen. As the fruit matures, oxygen in the air helps stimulate the production of ethylene. This ethylene production is a signal that begins fruit ripening. For that reason, unripe fruits have low levels of ethylene, while ripe fruits have higher levels of ethylene. Most fruits produce ethylene and respond to ethylene in the atmosphere.

Although fruits require ethylene to ripen, different types of fruits respond to this molecule in two distinct ways: non-climacteric fruits and climacteric fruits. Non-climacteric fruits do not ripen after harvesting. They produce very little ethylene of their own. Climacteric fruits, on the other hand, continue to ripen after they are picked. These fruits produce a large amount of ethylene. Climacteric fruits can also speed up the ripening process of other fruits nearby since they release high levels of ethylene into the air.  

Which of the following best summarizes paragraph 4?

Giá trị nhỏ nhất của hàm số $f\left(x\right)=x^4-6x^2+2$ trên đoạn $\left[-2; 1\right]$ bằng?

Read the following passage about the Second Acts That Inspire 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.

Life often presents us with unexpected challenges that force us back to the drawing board. Whether due to personal setbacks, career changes, or unforeseen circumstances, the courage to begin again can lead to remarkable transformations. Many inspiring individuals have shown that it's never too late to reinvent oneself and pursue new dreams. Throughout history, countless people have overcome seemingly impossible situations through sheer determination.

[I] Take J.K. Rowling, for instance. Before becoming a literary sensation, she was a struggling single mother living on welfare. [II] Her determination eventually paid off when her books became a global phenomenon, proving that setbacks can become stepping stones to success. [III] This remarkable turnaround demonstrates how resilience and unwavering belief in oneself can overcome seemingly insurmountable obstacles. Despite facing depression and financial hardship, she never gave up on her dreams. [IV]

Colonel Harland Sanders' story is another testament to the power of starting anew. At the age of 65, when most people contemplate retirement, he found himself struggling financially after his restaurant failed. Instead of giving up, he traveled across America, sleeping in his car while pitching his chicken recipe to restaurant owners. His recipe for success wasn't just about the perfect blend of herbs and spices; it was about persistence and determination. After facing over 1,000 rejections, he finally established Kentucky Fried Chicken, which grew into a global empire. His unwavering spirit and dedication inspired generations of entrepreneurs worldwide.

These inspiring stories remind us that failure is not final, but rather a chance to redirect our path. Every setback carries the seed of an equal or greater opportunity, and sometimes the end of one chapter is simply the beginning of a better one. The key lies in having the courage to take that first step, even when the future seems uncertain. As these remarkable individuals have shown, it's never too late to rewrite your story and create a powerful second act. Their journeys teach us that persistence and courage ultimately lead to success.

The phrase “back to the drawing board” in paragraph 1 could be best replaced by _________.

Cho hàm số \(y=f\left( x \right)\) xác định trên \(\mathbb{R}\backslash \left\{ 0 \right\}\) và có bảng biến thiên như hình sau:

Phương trình \(f\left( {{x}^{2}} \right)=1\) có bao nhiêu nghiệm?

Nội dung nào dưới đây nói về nhiệm vụ của Tòa án nhân dân?

Thuận lợi chủ yếu về tự nhiên để ngành công nghiệp ở Cộng hòa Nam Phi phát triển là gì?

Cho tập hợp $X = \{1;5\}$, $Y = \{1;3;5\}$. Tập $X \cap Y$ là 

Ý nào sau đây không phải điểm mới của văn học nước ta từ thế kỉ XVI đến XVIII?

Theo quy định pháp luật, công dân có thể thực hiện quyền tố cáo trong tình huống nào?

CHỦ ĐỀ: HÀNH VI TÌM KIẾM SỰ HỖ TRỢ CỦA PHỤ NỮ KHI MẮC TRẦM CẢM SAU SINH

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 21)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d00b996754ec

Và trả lời câu hỏi sau:

Mục đích chính của văn bản trên là gì?

Giám định y khoa phục vụ cho việc phá án, xét xử; khám nghiệm tử thi; kiểm tra tình trạng sức khỏe, kiểm tra các dấu hiệu thân thể bị xâm phạm; khám nghiệm hiện trường là hoạt động nghề nghiệp của ai?

Theo em, hạn chế lớn nhất của máy tính hiện nay là?

Tiền đề quyết định cho sự phát triển nền kinh tế tri thức là gì?

Sau khi ký hiệp ước Nhâm Tuất 1862, triều đình Huế đã có hành động gì?