Hệ thống truyền lực nào sau đây phân loại theo cách truyền và biến đổi mô men?

Cho tập hợp $A = \{1; 2;5;7\}$ và $B = \{1; 2;3\}$. Có tất cả bao nhiêu tập $X$ thỏa mãn $X \subset A$ và $X \subset B$?

Choose A, B, C or D:

Lora has just bought a new skirt that she likes very much. 

- Jane: “You look great in that red skirt, Lora!” 

- Lora: “______”.

Loại tế bào nào dưới đây đảm nhận chức năng vận chuyển O₂ và CO₂ trong cơ thể?

Hình ảnh sau đây là giá thể gì?

Chọn câu lệnh gán trong Python trong các lệnh dưới đây?

Phản ứng thu nhiệt là

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

Anh An mua ô tô trả góp trị giá 400 triệu với lãi suất \(1.2 \%\) một tháng. Hỏi hàng tháng anh An phải trả bao nhiêu triệu để sau 4 năm thi hết nợ? (làm tròn đến hàng đơn vị)

Ở vĩ độ thấp đâu là hướng chảy của các vòng hoàn lưu ở bán cầu Bắc?

Cho bảng số liệu:

Mực nước một số sông chính ở nước ta năm 2023

(Đơn vị: cm)

(Nguồn: NXB Thống kê 2023)

Căn cứ vào bảng số liệu trên, hãy cho biết năm 2023, sự chênh lệch mực nước cao nhất và mực nước thấp nhất của sông Thao tại trạm Yên Bái cao hơn so với sông Lô tại trạm Tuyên Quang là bao nhiêu cm.

Khi Pháp đánh chiếm Bắc Kì lần 2, phản ứng của quân dân Hà Nội như thế nào?

Đặc điểm nào sau đây của IoT giúp rút ngắn hoặc đồng bộ nhiều hoạt động với nhau?

Diện tích cà phê của Tây Nguyên năm 2021 là 657,4 nghìn ha và sản lượng cà phê năm 2021 đạt 1027,0 nghìn tấn. Hãy tính năng suất cà phê của Tây Nguyên là bao nhiêu tạ/ha (làm tròn kết quả đến hàng phần chục). (làm tròn kết quả đến một chữ số thập phân)

Đọc đoạn sau và trả lời câu hỏi:

“Trèo lên cây khế nửa ngày,

Ai làm chua xót lòng này, khế ơi!

Mặt trăng sánh với mặt trời.

Sao Hôm sánh với sao Mai chằng chằng.

Mình đi có nhớ ta chăng?

Ta như sao Vượt chờ Trăng giữa trời. ”

Hình ảnh “sao Mai”, “sao Hôm” trong câu ca dao “Sao Hôm sánh với sao Mai chằng chằng” gợi lên đặc điểm gì về tình cảm của lứa đôi?

Bộ phận nào được xem là dạ dày chính thức của động vật nhai lại?

Trong xã hội ứng với thời kì bây người nguyên thủy và công xã thị tộc mẫu hệ, con người đã sử dụng công cụ lao động bằng gì?

Máy động lực công suất lớn có công suất là:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 40.

Parents of a Tokyo elementary school are up in arms at being asked to pay 730 dollars for their child's school uniform. A public elementary school in Tokyo's upmarket Ginza district has decided to adopt new school uniforms designed by the luxury Italian designer Armani. The bespoke uniforms, which include a hat and bag, are priced at over 80,000 (730 dollars) each. Parents are angry at the school's decision and are protesting at what they view as the exorbitant price for a uniform of an eight-year-old child. The school said it wanted a designer uniform that represented the rich area of Ginza. School officials visited top department stores and decided to ask the fashion brand Armani to design the uniform.

The expensive uniform has created such a fuss that it has been discussed in Japan's parliament. One lawmaker said that since the school is public and not private, "a certain price range needs to be considered". Finance Minister Taro Aso said. "Clearly it's expensive. It would be tough if a student could not afford to pay for it." Japan's education minister said steps would be taken to ensure the financial burden placed on parents for uniforms, "would not be excessive". Twitter users said young children are not interested in designer clothes. The school principal said. "With humility, I take the criticism that the explanation has been insufficient and not well-timed. I will go on explaining carefully to those concerned."

Why did the school want such an expensive uniform?

Nhận định nào sau đây là không đúng khi nói đến việc: trong cuộc sống hàng ngày chúng ta đã và đang bắt gặp lịch sử ở khắp mọi nơi?

Read the passage carefully

1. Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

2. The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

3. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't  agree.

4. What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

5. As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Choose an option (A, B, C, or D) that best answers each question:

What does the word “they” in paragraph 2 refer to?