Kết quả khi thực hiện câu lệnh sau:
>>>10 - 5 ** 2 + 8//3 +2
Tài liệu "Bộ Đề Kiểm Tra Học Kì II - Năm Học 2022-2023 - Tin Học 10" tổng hợp các đề kiểm tra từ các trường THPT trên toàn quốc, được biên soạn theo chương trình chuẩn. Đề thi bao gồm các dạng bài tập trắc nghiệm, tự luận, và thực hành, tập trung vào các chủ đề chính: hệ điều hành, các phần mềm ứng dụng, thuật toán cơ bản, lập trình với ngôn ngữ Python, và ứng dụng công nghệ thông tin trong giải quyết vấn đề thực tế.
Câu hỏi liên quan
Read the following passage about How Failures Led to Breakthroughs 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.
Many important discoveries happened because of mistakes and unexpected accidents. Alexander Fleming found penicillin when he left his laboratory messy before going on holiday. After vacation, he saw mold growing on his experiment plate. Fleming noticed this mold killed bacteria around it very effectively. This fortunate accident later saved millions of lives around the world. Scientists call finding valuable things by chance "serendipity," which happens often in research.
The Post-it Note began as a mistake that seemed useless at first. In 1968, Spencer Silver tried making a strong glue for 3M company but created a weak one instead that didn't stick permanently. Nobody knew what to do with this disappointing result for several years. Then his colleague Arthur Fry realized this "failure" could make perfect bookmarks that wouldn't damage pages when removed. This weak adhesive eventually became one of the most popular office products worldwide, changing how people work.
In cooking, many favorite foods came from kitchen errors and quick substitutions. Ruth Wakefield invented chocolate chip cookies when she ran out of baker's chocolate and used broken pieces of semi-sweet chocolate instead. She thought they would melt completely in the dough, but they kept their shape during baking. Potato chips were created when chef George Crum made extremely thin potatoes to annoy a customer who repeatedly complained about thick fries. Surprisingly, the customer loved them and ordered more!
These fascinating stories teach us that mistakes can lead to new opportunities and unexpected innovations. Thomas Edison said about his many failed light bulb attempts, "I haven't failed. I've just found 10,000 ways that don't work." This positive attitude shows we should see errors as valuable learning chances. Smart people don't fear making mistakes in their work; they fear missing opportunities to learn from them and discover something amazing.
Which of the following is TRUE according to the passage?
Vitamin C (ascorbic acid) chứa \(40,92 \% \mathrm{C}, 4,58 \% \mathrm{H}\) và \(54,50 \% \mathrm{O}\) về khối lượng. Công thức thực nghiệm của ascorbic acid là:
chọn đúng hoă̆c sai với mỗi ý a), b), c), d)
Khi hai vật tiếp xúc với nhauCon hãy lựa chọn đáp án Đúng hoặc Sai
Ý kiến: “Nguyễn Tuân chủ trương chủ nghĩa xê dịch không thích cuộc sống trầm lặng, bình ổn nên ông đi suốt chiều dài đất nước để tìm những điều mới mẻ, độc đáo” là đúng hay sai
Lớp electron thứ 3 có bao nhiêu phân lớp và kí hiệu các phân lớp này là gì?
Các sắc tố quang hợp có đặc điểm nào dưới đây?
Xác định ý đúng: Nguyên liệu sản xuất phân bón hóa học là gì?
Cho ba điểm \(A\), \(B\), \(C\) phân biệt. Điều kiện cần và đủ để ba điểm đó thẳng hàng là
Hãy cho biết trong dao động điều hòa của một vật thì gia tốc và vận tốc tức thời biến thiên theo thời gian
Liệt kê các phần tử của tập hợp \(X=\left\{ x\in \mathbb{Z}\,|\,2{{x}^{2}}-3x+1=0 \right\}\) ta có
Chăn nuôi lợn tập trung nhiều ở các đồng bằng lớn của nước ta chủ yếu là do
Ngân sách nhà nước có vai trò như thế nào đối với một quốc gia?
Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.
The Amazon rainforest is home to more than a third of all the world's species of plants, birds and animals. Twenty per cent of all the birds in the world live in the rainforest. Scientists have discovered thousands of types of plants and animals that can only be found there. There are thousands - probably millions more that we haven't discovered yet. There are at least 2.5 million species of insects there. Imagine what would happen if they all lost their home? It couldn't happen, could it? Unfortunately, it's happening right now. Yet, the rainforest is big. But it's getting smaller. The problem is that people are cutting down the trees, mainly to make room for cows. These provide meat and make money for their owners. This process of cutting down trees is called ‘deforestation'.
The good news is that it is slowing down. In 2004, for example, more than 27,000 square kilometres were cut down. That's an area bigger than Wales. In 2006, because of all the campaigns to save rainforest, it dropped to just over 13,000 square kilometres. The bad news is that it's not enough. Scientists predict that by 2030, the rainforest will have become smaller by 40%. It's possible that by the end of the 21st century, the rainforest will have completely disappeared. With deforestation, thousands of the animals, birds, fish and plants that live in the Amazon rainforest lose their home, their natural habitat. Some of them move to other areas, but most of them die. Many species have already become extinct, and many more will if deforestation continues. That will change the balance of life in the rainforest and could cause enormous problems to the region's ecosystem.
There's another problem too. Trees and plants are a vital source of oxygen. If we cut them down, we lose that oxygen. But it's worse than just that. With deforestation, the trees and plants are burnt. This sends gases into the Earth's atmosphere, which stops some of the Earth's heat escaping. That then leads to the temperature here on the ground going up. This increase in the world's temperature is called 'global warming', and most scientists believe it's a very serious issue. If they stopped deforestation, it might help prevent global warming
Which title best summarises the main idea of the passage?
Cho hai lực và có cùng điểm đặt O và vuông góc với nhau. Cường độ của hai lực và lần lượt là 80N và 60N. Cường độ tổng hợp lực của hai lực đó là?
Many diseases that were once considered fatal are now _______ with advanced medical treatments.
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 word “its" in the first paragraph refers to ________?
Văn bản quy phạm pháp luật có hiệu lực pháp lý cao nhất nước ta là gì?
Bản đồ có tỉ lệ 1:300.000, thì 7cm trên bản đồ tương ứng trên thực địa là bao nhiêu?
Thái độ của Mĩ đối với sự bành trướng của chủ nghĩa phát xít ở những năm 30 của thế kỷ XX là
Read the following advertisement about a new travel platform and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
FAQ ON FINDING TRAVEL BUDDY
What is the concept of finding a travel buddy at Join My Trip?
You can find a travel buddy by joining trips hosted by (1) ________, whom we call Trip Leaders. The trips are (2) ________ handpicked and curated, offering you the best experience you can't find anywhere else. The Trip Leaders will be (3) ________ charge of these trips, from designing the itinerary (4) ________ the way. Furthermore, Trip Leaders will accept travelers, (5) ________ Trip Mates, on their trips and travel together. So, by joining our trips, you can be (6) ________ with other amazing travelers from all over the world.
