Cho hai tập A = [0; 5] B = (2a; 3a + 1), a > –1. Với giá trị nào của a thì \[{\rm{A}} \cap {\rm{B}} \ne \emptyset \].

Chọn cặp từ/ cụm từ thích hợp nhất điền vào chỗ trống.

Trong lịch sử, _____ thường gắn với những tai họa, xui xẻo, dịch bệnh lớn của nhân loại. Chính vì điều đó, người ta cho rằng sự xuất hiện của sao chổi chính là điềm báo cho những điều _____.

Kì nào cả hai xupap đều đóng trong động cơ 4 kì ?

Cho hai đường thẳng phân biệt a,b và mặt phẳng (P), trong đó a⊥(P). Mệnh đề nào sau đây là sai?

Hệ thống định vị toàn cầu GLONASS là của quốc gia nào sau đây?

Những thông tin của thị trường mang lại lợi ích gì cho người mua?

Kiểu khí hậu nào phổ biến ở vùng phía Đông và vùng Trung tâm Hoa Kì?

Xác định ý đúng: Sinh vật nhân sơ được nhận xét bao gồm các nhóm?

Phát biểu nào sau đây không nằm trong quy tắc an toàn khi sử dụng dòng điện xoay chiều?

Cho hàm số \(f(x)=\cos ^{2} 2 x+2(\sin x+\cos x)^{3}-3 \sin 2 x+m\). Số các giá trị nguyên của \(m\) để \(f^{2}(x) \leq 36~ \forall x\) là?

Read the following passage about the The Importance of Social Media in Modern Society 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.

In the 21st century, social media has become a crucial element of everyday life[I]. Platforms such as Facebook, Twitter, Instagram, and TikTok link individuals around the world, [IV]. Although some may critique social media for promoting negativity, it is important to acknowledge its numerous positive effects on society[III]. This essay will delve into the importance of social media, its influence on shaping public perception, and the challenges it poses.[II]

One of the primary benefits of social media is its ability to foster communication and connection. People can maintain relationships with friends and family, regardless of geographical barriers. This aspect is particularly vital for those who live far away from loved ones. For example, a student studying abroad can easily share their experiences with family through posts, photos, and video calls. Furthermore, social media enables individuals to connect with like-minded people and build communities around shared interests or causes. Activist groups, for instance, often use social media platforms to rally support for important issues, raising awareness and mobilizing action more efficiently than traditional methods.

Moreover, social media serves as a powerful tool for information dissemination. News spreads rapidly through these platforms, allowing individuals to stay informed about current events. During emergencies, such as natural disasters, social media can provide crucial information in real time, helping people stay safe and informed. However, this rapid dissemination of information also raises concerns about the accuracy and reliability of the content being shared. Misinformation can spread just as quickly as legitimate news, leading to confusion and mistrust.

Despite the challenges posed by misinformation, social media plays a significant role in shaping public opinion. People often turn to these platforms to voice their opinions and engage in discussions on various topics. For instance, political debates and social movements frequently gain traction through social media, allowing individuals to express their views and influence others. This democratization of discourse can empower marginalized voices and facilitate social change. However, it is crucial to approach online discussions critically, as echo chambers can form, reinforcing existing beliefs rather than encouraging open dialogue.

In conclusion, while social media presents challenges such as misinformation and polarized discussions, its positive contributions to communication, information dissemination, and social activism cannot be overlooked. As society continues to evolve, it is essential to harness the potential of social media while being mindful of its pitfalls. By promoting responsible use and critical thinking, we can maximize the benefits of social media and foster a more connected and informed society.

Which of the following is TRUE according to the passage?

Một thùng hàng có khối lượng 20kg được đẩy lên 1 con dốc cao 3m bằng động cơ băng truyền. Biết trong cả quá trình vận chuyển, động cơ cần sử dụng năng lượng tổng cộng là 4000J. Lấy g=10m/s2. Hiệu suất của động cơ là bao nhiêu %?

Hãy chọn kiểu dữ liệu thích hợp cho truờng điểm “Toán”, “Lý”, ...?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Hoa: Thank you. I appreciate the compliment.

b. Linda: I was at the workshop at the ASEAN Youth Volunteer Conference. You gave the best presentation!

c. Hoa: I’m glad you like it, Linda. I worked really hard to prepare for it.

d. Linda: It was also well-organised. And I noticed that your English has improved a lot. It’s excellent!

e. Linda: You’re welcome.

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.

Here are some ways to help reduce global warming. Which of these do you regularly do?

Don't use private cars. Your willingness to walk or cycle to nearby places can help reduce the emissions of carbon dioxide and also reduce your own carbon footprint. Use public transport. If travelling long distances, then use public transport rather than your car. However, if you carpool (travel together with a group of people in one car), then you are choosing to help ___(7)___ environment. If we travel with ___(8)___, we will use less petrol.

Make a decision to reduce, recycle, and reuse. Reduce waste by buying reusable products. Don't forget to recycle plastics, glass, and paper products. You may wish to reuse some of your old items to ___(9)___, too. Take unneeded ___(10)___ to a recycling centre.

Buy local goods. When you buy goods ___(11)___ from far-away places, it takes a lot of energy to ___(12)___ them to your area. This means that if you don't buy local food and products, then more emissions of carbon dioxide will happen during the transportation process.

(Adapted from English Discovery)

Các hoạt động nào sau đây hiện nay thu hút mạnh mẽ đầu tư nước ngoài?

Số lượng hàng hóa và dịch vụ mà nhà cung cấp sẵn sàng đáp ứng cho nhu cầu thị trường với mức giá được xác định trong khoảng thời gian nhất định được gọi là gì?

Choose A, B, C or D to make a complete dialogue for each question.

a. Well, we can’t deny this. I’ve started using paper bags exclusively. It’s my small way of helping the environment.

b. Do you ever consider using paper bags instead of plastic?

c. No, I find it easier to just reuse the plastic ones I already have at home.

d. I agree, but aren’t plastic bags still more convenient for carrying heavier items?

e. Surely. But have you noticed how plastic bags pile up and become a problem?

f. I haven’t really thought about it, but maybe it’s time to switch to paper.

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.

Discover the Soul of Vietnam

Vietnam is a country where the past and the present coexist beautifully. From the bustling streets of Ho Chi Minh City to the serene landscapes of the Mekong Delta, Vietnam offers (1) ______. Do you ever wonder about the true essence of Vietnamese culture? Our cultural tours are here to help you (2) _______ deep into this fascinating journey!

With tours (3) _______to immerse you in the traditional art of Vietnamese silk weaving, the ancient rituals of Tet (Lunar New Year), and the vibrant local markets, you’ll get a taste of both the ancient and modern Vietnam.

Why Choose Vietnamese Culture Tours?

·      Authentic Insights: You’ll have the chance to interact with local (4) _______and experience firsthand the making of traditional handicrafts.

·      Culinary Delights: The food culture in Vietnam is an essential part of its identity. You’ll explore local cuisines, from pho in Hanoi to street food in Saigon, and learn how (5) _______traditional dishes.

·      Sustainable Travel: Our tours promote eco-friendly practices, such as supporting local farmers and reducing environmental impact.

·      Personalized Experience: We offer tailored itineraries, (6) _______ you’re interested in the cultural heritage of the north or the tropical beauty of the south.