Lĩnh vực nào thuộc không thuộc an ninh truyền thống?

Kết quả của phép hội mệnh đề p và mệnh đề phủ định của p như thế nào?

Chọn câu đúng: 

Cho phản ứng hoá học sau: 3Cu + 8HNO₃ → 3Cu(NO₃)₂ + 2NO + 4H₂O. Vai trò của HNO₃ trong phản ứng hoá học này là

Trong Python, câu lệnh nào là dùng để đưa dữ liệu ra màn hình?

Nguyên tử Iron (Fe) có Z = 26. Cấu hình electron của nguyên tử Fe là

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

There used to be a theatre here. It was tom down a few years ago.

Điều nào sau đây bị giảm mạnh trong các vectơ plasmit sau khi chèn DNA ngoại sinh?

Vận tốc của chất điểm dao động điều hoà có độ lớn cực đại khi

CHỦ ĐỀ: GIẢI NOBEL HÓA HỌC 2020

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

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d00ddd794efd

Và trả lời câu hỏi sau:

Điền một từ không quá HAI tiếng từ bài đọc vào chỗ trống:

Theo đoạn [1], công nghệ chỉnh sửa gen CRISPR/Cas9 được ứng dụng và tạo ra tác động trong các ngành khoa học nghiên cứu về [.......].

Sự kiện nào đã “phá vỡ trận tuyến” của chủ nghĩa tư bản, làm cho nó không còn là hệ thống hoàn chỉnh, duy nhất trên toàn thế giới?

Cho 5 điểm M, N, P, Q, R. Tính tổng $\overrightarrow{MN}+\overrightarrow{PQ}+\overrightarrow{RN}+\overrightarrow{NP}+\overrightarrow{QR}$?

Logical thinking and problem solving: Choose A, B C or D to answer each question. 

You have an important meeting today at the office. However, you have missed the bus, and you are going to be late for the meeting. What will you say when you enter the meeting room?

Xác định phép liên kết câu có trong đoạn sau:

Thật ra, thời gian không phải là một mà là hai: đó vừa là một định luật tự nhiên, khách quan, bao trùm thế giới, vừa là một khái niệm chủ quan của con người đơn độc. Bởi vì chỉ có con người mới có ý thức về thời gian. Con người là sinh vật duy nhất biết rằng mình sẽ chết, và biết rằng thời gian là liên tục.

(Thời gian là gì?, trích trong tạp chí Tia sáng)

1. Do you find yourself yawning all day at school? You probably need more sleep. However, it is not just how much sleep you get that is important. What you do before bedtime also has a huge effect on how you feel the next day. If you spend time chatting to someone on social media, or reading a book on your e- reader, you are not alone.

2. All devices' screens give out a large amount of blue light, which affects the body's production of the sleep hormone, melatonin, which can change your sleep patterns. So it is not just getting to sleep that becomes hard, but the quality of your sleep also suffers. The result is that you can wake up several times during the night, and have difficulty getting up in the morning.

3. Sleep is food for the brain, so not sleeping well can be a severe problem for anyone, especially for teenagers, because their brains are still developing. When you do not sleep well, it can be difficult to concentrate at school, which makes it harder to learn and get good grades. It can also affect your mood, making you feel sad or anxious.   

4. So, it is clear you should not use your phone before you go to sleep. Why not leave it in another room? Nothing on social media is so important that it cannot wait a few hours! You should rediscover paper books and enjoy feeling tired and sleepy before bedtime rather than wondering why your best friend has not liked your photo! How will you wake up? You do not have to use the alarm on your phone. Go and buy yourself an old-fashioned alarm clock! The negative effects that screen time is having on sleep have been in the news a lot recently, so manufacturers of smartphones and tablets have added a feature to the mobile devices that can help reduce these. Most new phones have a night-time setting that changes the colour of the screen so that it gives out less blue light. If you really cannot avoid going onto social media at bedtime, think about turning on this setting on your phone.

What does the word it in paragraph 4 refer to?

Hiến pháp Việt Nam do cơ quan nào xây dựng?

Bộ phận nào của phanh có chức năng dừng, giữ xe trên đường trong thời gian dài?

Cho hàm số \(f(x)\) có đạo hàm trên \(\mathbb{R}\) và \(f^{\prime}(x)<0, \forall x \in(0;+\infty)\) biết \(f(0)=3\). Khẳng định nào sau đây có thể xảy ra.

Read the passage below and choose A, B, C or D to answer each question from 641 to 645.

Cities develop as a result of functions that they can perform. Some functions result directly from the ingenuity of the citizenry, but most functions result from the needs of the local area and of the surrounding hinterland (the region that supplies goods to the city and to which the city furnishes services and other goods). Geographers often make a distinction between the situation and the site of a city. Situation refers to the general position in relation to the surrounding region, whereas site involves physical characteristics of the specific location. Situation is normally much more important to the continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is much more likely to continue. Chicago, for example, possesses an almost unparalleled situation: it is located at the southern end of a huge lake that forces east-west transportation lines to be compressed into its vicinity, and at a meeting of significant land and water transport routes. It also overlooks what is one of the world’s finest large farming regions. These factors ensured that Chicago would become a great city regardless of the disadvantageous characteristics of the available site, such as being prone to flooding during thunderstorm activity.

Similarly, it can be argued that much of New York City’s importance stems from its early and continuing advantage of situation. Philadelphia and Boston both originated at about the same time as New York and shared New York’s location at the western end of one of the world’s most important oceanic trade routes, but only New York possesses an easy-access functional connection (the Hudson- Mohawk Lowland) to the vast Midwestern Hinterland. This account does not alone explain New York’s primacy, but it does include several important factors. Among the many aspects of situation that help to explain why some cities grow and others do not, original location on a navigable waterway seems particularly applicable. Of course, such characteristics as slope, drainage, power resources, river crossings, coastal shapes, and other physical characteristics help to determine city location, but such factors are normally more significant in early stages of city development than later.

Which of the following does the author probably support?

Dãy nào sau đây gồm các chất đều có khả năng tham gia phản ứng trùng hợp?

Đâu là ý đúng: Hô hấp oxi hóa ở sinh vật nhân thực có mức hiệu quả xấp xỉ?