Cho các tập hợp sau:

A = {x ∈ ℤ | 2 < x – 1 < 4};

B = {x ∈ ℕ | 3 < 2x – 3 < 5};

C = {x ∈ ℕ | x < 5}.

Trong các tập hợp trên, có bao nhiêu tập hợp là tập hợp rỗng?

Để Tạo bảng Casi: thì em cần?

Em hãy cho biết những nhận định sau đây là không đúng khi bàn về chức năng của giá cả thị trường? 

Read the following passage about lifelong learning 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 18 to 22.

In today’s rapidly changing world, lifelong learning has become more important than ever. ___(18)___. To stay relevant and competitive in the job market, individuals must continuously acquire new skills and knowledge.

One of the key benefits of lifelong learning is personal growth. ___(19)___. By exploring new subjects and hobbies, individuals can expand their horizons and discover new passions.

Lifelong learning can also lead to professional advancement. ___(20)___. By staying up-to-date with the latest trends and technologies, individuals can increase their value to employers and advance their careers.

However, lifelong learning can be challenging. ___(21)___. Balancing work, family, and personal commitments can make it difficult to find time for learning.

To make the most of lifelong learning, it is essential to set clear goals and create a personalized learning plan. ___(22)___. By breaking down larger goals into smaller, achievable steps, individuals can stay motivated and make progress.

Đặc điểm nổi bật của nền kinh tế Việt Nam những năm cuối thế kỉ XIX – đầu thế kỉ XX là

Tâm trạng của nhân vật trữ tình trong hai khổ thơ sau là gì?

Read the following passage about powering 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. 

TikTok is a popular social media app where people can create and share short videos [I]. It started in China in 2016 as Douyin [II]. The app is known for its easy-to-use tools that let users add music, effects, and filters to their videos [III]. People of all ages enjoy making and watching TikTok videos, which can be funny, educational, or creative [IV].

One of the reasons TikTok is so popular is because of its algorithm, which shows users videos that match their interests. When you open the app, you see a personalized feed called the "For You" page. This page is different for everyone and updates with new videos all the time. Users can also follow their favorite creators to see more of their content.

TikTok has become a platform for trends and challenges. Many users participate in dance challenges, lip-syncing, and other viral activities. These trends can spread quickly, reaching millions of people in a short time. Because of this, TikTok has influenced music charts, fashion, and even language. Songs that go viral on TikTok often become hits on other platforms too.

The app is also a space for education and advocacy. Many creators use TikTok to share knowledge about various topics, such as science, history, cooking, and fitness. Others use the platform to raise awareness about social issues and promote positive change.

In addition to individual creators, many brands and businesses use TikTok for marketing. They create content to engage with their audience, often using popular trends and challenges to promote their products.

However, TikTok has faced some criticism and challenges. Concerns about privacy and data security have led to scrutiny from governments. Despite these issues, TikTok still remains one of the most downloaded apps in the world.

Which of the following best paraphrases the underlined sentence in paragraph 4?

Nguồn năng lượng sinh ra ngoại lực chủ yếu là của yếu tố nào?

Read a flyer promoting a new gym. Decide if the statements are true (T) or false (F). 

About us

You don't want just a gym membership. You want a membership that means something. And that means you need support, expert help and a community.

Best Body Fitness isn't just a gym: it's a full-service fitness membership made for you.

Here's how it works:

STEP ONE: Your assessment

We begin with an assessment session. This is a chance for you to see what we do at Best Body. Our assessment plans are no-cost and no-risk. We'll also make a training plan specifically for you.

STEP TWO: Your training

When you decide to become a Best Body member, we show you what to do, how to do it and why you are doing it. After a few sessions with an expert private trainer you will feel comfortable working out on your own. But don't worry, we'll always be nearby if you have questions.

STEP THREE: Your membership

Membership works on a month-to-month basis. There are no sign-up fees and no cancellation fees. Start and stop whenever you want. And the best part? Our fees are the most competitive in the whole downtown area.

STEP FOUR: Your community

At Best Body Fitness, we see everyone as part of a big team. And when you work with a team, you can do great things. Join any of our specialized classes, led by expert instructors. Come to our nutrition classes. Participate in our regular social events. Everything is included in your fee.

At this gym, you always do exercise with an expert instructor.

Cho tập hợp \(A=\left\{ x\in \mathbb{R}\,\text{ }\!\!|\!\!\text{ }\,\frac{3}{\left| x+7 \right|}>\frac{1}{3} \right\}\) và tập hợp \(B=\{x\in \mathbb{R}\,\text{ }\!\!|\!\!\text{ }\,1\le \left| x \right|\le 5\text{ }\!\!\}\!\!\text{ }\). Tập hợp \(\left( A\cup B \right)\backslash \left( A\cap B \right)\) có tất cả bao nhiêu phần tử là số nguyên?

Đặc điểm của áp dụng công nghệ mới trong sản xuất vaccine là?

Ý kiến nào sau đây đúng khi bàn về vấn đề đạo đức trong kinh doanh?

Hoạt động tiêu dùng bao gồm bao nhiêu hình thức chính?

So với miền Tây Bắc và Bắc Trung Bộ, miền Bắc và Đông Bắc Bắc Bộ có mùa đông

Find the word which has a different sound in the part underlined.

Mark the letter A, B, C or D to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of thefollowing questions from 25 to 29. 

a. Additionally, he established the first labs in Nha Trang. 

b. Alexandre Yersin was a Swiss-born doctor. 

c. This doctor greatly contributed to medicine and Vietnam by discovering bacteria. 

d. He was also the founder of Ha Noi Medical University. 

e. His legacy includes a museum and a university named in his honor.

Cho hàm số \(y = {\cot ^2}\frac{x}{4}\). Khi đó nghiệm của phương trình y'=0 là

Cho hệ bất phương trình \(\left\{ \begin{matrix} \begin{matrix} \begin{matrix} 3x+2y\ge 9 \\ x-2y\le 3 \\ \end{matrix} \\ x+y\le 6 \\ \end{matrix} \\ x\ge 1 \\ \end{matrix} \right.\) (I).

Nội dung nào sau đây không phải ưu điểm của cơ chế thị trường?