Cho hàm số \(f(x) = \left\{ \begin{array}{l}\sqrt {x + 1} - 2\quad (x \ge 1)\\3{x^2} - x + 1\quad (x < 1)\end{array} \right.\). Tính giá trị của: \(2.f( - 3) - 4.f(3)\)?

Cho bảng dữ kiện về một số thành tựu của các nền văn minh phương Đông thời cổ - trung đại.

Kí hiệu dưới đây có ý nghĩa gì?

Hình biểu diễn của bộ phận lắp là:

Trong không gian Oxyz, cho $\overrightarrow{a}=\left(3;1;-2\right)$ và $\overrightarrow{b}=\left(-2;0;-3\right)$. Tích vô hướng $\overrightarrow{a}.\left(2\overrightarrow{a}+\overrightarrow{b}\right)$ bằng?

Cho biết: Ở giai đoạn xâm nhập của Virut vào tế bào chủ xảy ra hiện tượng nào?

Động năng trong dao động điều hoà biển đổi theo thời gian

Các mục tiêu chỉnh sửa video thường là?

Read the following advertisement 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.

Fire Ant Festival 2024 - November 25

The upcoming Fire Ant Festival will be an incredibly exciting event, where you will be introduced (1)______ lively games and thrilling activities. In a vibrantly decorated outdoor space, visitors will have the chance to take part in traditional games such as tug-of-war, endurance competitions, and on-land boat racing. The highlight of the festival is the (2)______, where teams will compete to create (3)______ fire ant-inspired structures. Additionally, guests can enjoy breathtaking fire dance performances (4)______ by professional artists from various regions. Although named after a creature known to(5)______ a threat to many other species, the festival has proven to be safe for visitors. The festival is also an opportunity for visitors to try unique traditional folk games, which have been preserved and developed over many generations. Come join us to soak up the lively atmosphere, we promise(6)____ you unforgettable memories!

Read the following leaflet 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 7 to 12.

MAKE A DIFFERENCE IN THE LIVES OF ANIMALS!

Animal shelters depend on the kindness of volunteers to care for homeless animals.

♻ Why Volunteer?

Many animals in shelters have been abandoned by their owners while (7) _______are rescued from dangerous situations. By volunteering, you can help provide food, medical care, and comfort to animals in need.

♻ How You Can Help:

Spend time with the animals, ensuring they feel loved and safe. Assist with cleaning and maintaining shelter facilities, as failing to tidy up messes can (8) _______ unhealthy conditions. Help raise awareness about adoption programs and the importance of reducing the (9) _______ of homeless animals. Rather than adopt a new pet without preparation, educate potential owners about proper care as many animals suffer neglect and abandonment (10) _______ irresponsible ownership. Together, we can ensure that every animal has a chance at a better (11) _______.

♻ Get Involved Today!

Volunteering doesn’t just benefit the animals - it gives you a sense of fulfillment and the opportunity to meet others who share the same (12) _______.

Trong phép so sánh, sự vật, sự việc A được so sánh với sự vật, sự việc B dựa trên mối quan hệ nào?

Bà Lan được tư vẫn bổ sung chế độ ăn kiêng đặc biệt bằng cách sử dụng hai loại thực phẩm khác nhau là X và Y. Mỗi gói thực phẩm X chứa 20 đơn vị canxi, 20 đơn vị sắt và 10 đơn vị vitamin B. Mỗi gói thực phẩm Y chứa 20 đơn vị canxi, 10 đơn vị sắt và 20 đơn vị vitamin B. Yêu cầu hằng ngày tối thiểu trong chế độ ăn uống là 240 đơn vị canxi, 160 đơn vị sắt và 140 đơn vị vitamin B. Mỗi ngày không được dùng quá 12 gói mỗi loại. Khi đó:

Cho A là một biến cố liên quan đến phép thử T. Mệnh đề nào sau đây là mệnh đề đúng?

According to the reading, which of the following was NOT an idea about the identity of the woman in the Mona Lisa?

Nội dung nào dưới đây cho thấy các dân tộc sinh sống trên đất nước Việt Nam đều bình đẳng về kinh tế?

Có bao nhiêu giá trị nguyên của tham số \(m\) để hàm số \(y=\frac{\sqrt{1-x}+1}{\sqrt{1-x}+m}\) đồng biến trên khoảng \((-3 ; 0)\) ?

Read the passage carefully. Choose an option (A, B, C, or D) that best answers each question from 41 to 45.

1. It is estimated that about 40 per cent of the world's population use social media, and many of these billions of social media users look up to influencers to help them decide what to buy and what trends to follow. An influencer is a person who can influence the decisions of his or her followers because of his or her knowledge or special knowledge in a particular area, e.g. fashion, travel, or technology. Influencers are now seen by many companies as a direct way to customers' hearts. Brands are now asking powerful influencers to market their products. With some influencers charging up to $25,000 for one social media post, it is no surprise that more and more people are keen to become influencers, too. If you are one of them, then here are five tips on how to do it.

2. Choose your niche: What is the area that you know most about? What do you feel most excited talking about? Find the specific area that you are most interested in and develop it.

3. Choose your medium and write an interesting bio: Most influencers these days are bloggers and micro-bloggers. Decide which medium – such as your own online blog, Instagram or Snapchat – is the best way to connect with your followers and chat about your niche area. When you have done that, write an attention-grabbing bio that describes you and your speciality area in an interesting and unique way. Make sure that people who read your bio will want to follow you.

4. Post regularly and consistently: Many influencers post daily on their social media accounts. The more you post, the more likely people will follow you. Also, make sure that your posts are consistent and possibly follow a theme.

5. Tell an interesting story: Whether it is a photo or a comment that you are posting, use it to tell a story that will catch the attention of your followers and help them connectwith you.

6. Make sure people can easily find your content: Publicize your posts on a variety of social media by hashtags and catchy titles to make sure that they can be easily found. There is no point writing the most exciting blogposts or posting the most attractive photographs if no one is going to see them.

7. Most importantly, if you want to become a social media influencer, you need to have patience. Keep posting and your following will gradually increase. Good luck!

In paragraph 2, what is the word niche closest in meaning to?

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 31 to 40.

[I] Social media has become a dominant force in modern communication, offering a range of benefits and challenges. [II] It has revolutionized the way people interact, share information, and even form relationships. [III] While these platforms offer opportunities for connection and expression, they also have their drawbacks. [IV] For instance, excessive use of social media has been linked to a range of negative effects, including mental health issues, social isolation, and decreased productivity. [V] However, when used responsibly, social media can also offer a variety of positive outcomes, such as the ability to stay connected with loved ones, network professionally, and access valuable information and resources.

One of the major benefits of social media is its ability to keep people connected. For example, individuals who live far apart can maintain close relationships through regular communication on these platforms. Social media also facilitates professional networking, allowing users to connect with potential employers or clients, and enabling companies to promote their products and services to a global audience. Additionally, platforms like Facebook, Twitter, and Instagram provide a space for people to share ideas, opinions, and creative work, fostering a sense of community and collaboration.

Despite these advantages, there are serious concerns about the negative impact of social media, particularly on mental health. Studies have shown that excessive social media use can contribute to feelings of anxiety, depression, and loneliness. This is often attributed to the unrealistic portrayals of life that are commonly shared on these platforms, leading to comparisons that can make individuals feel inadequate or left out. Furthermore, constant exposure to negative news or online bullying can exacerbate these feelings and contribute to long-term psychological stress.

Another issue with social media is its potential to distract people from their daily responsibilities. With notifications constantly popping up and endless streams of content to scroll through, individuals may find it difficult to focus on tasks such as work, school, or personal obligations. This can result in decreased productivity and a lack of attention to important matters.

Ultimately, the impact of social media depends on how it is used. If individuals are mindful of their usage patterns and take steps to limit their time on these platforms, they can enjoy the benefits of staying connected and informed without the negative consequences. Parents, educators, and mental health professionals can also play a role in helping young people develop healthy habits and manage their social media use effectively.

The word "these" in paragraph 3 refers to _______.

Choose A, B, C or D that has the CLOSEST meaning to the underlined word/phrase in each question.

Groundbreaking research in the field of quantum physics was conducted by Albert Einstein in the early 20th century.