Một cuộn dây có độ tự cảm L = 30 mH, có dòng điện chạy qua biến thiên đều đặn 150 A/s thì suất điện động tự cảm xuất hiện có giá trị bằng bao nhiêu (V)?  (Đáp án được làm tròn đến 1 chữ số sau dấu phẩy).

Cho đoạn chương trình sau:

for i in range(6):

print(i)

Trong đoạn chương trình trên vòng lặp được thực hiện bao nhiêu lần?

Các giá trị lôgic “Đúng” và “Sai” được thể hiện lần lượt trong đại số lôgic bởi số nào?

Nội dung nào dưới đây phản ánh không đúng về văn minh? 

Trước năm 2000, lao động ở Việt Nam chủ yếu làm trong ngành nào sau đây?

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.

According to the paragraph 2, which of the following is NOT a benefits of social media?

Một vật dao động điều hòa với phương trình $x=10\cos\left(5\pi t+\dfrac{\pi}{3}\right)$ (cm). Pha ban đầu của dao động là

Em hãy xác định có bao nhiêu loại tỉ lệ?

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 25 to 30.

How to Manage Your Money Wisely?

Managing your finances properly is essential for a stable and secure life.  (25) _________, many people struggle with budgeting and saving and give up their financial plans sooner or later, eventually leading (26) _________ overspending and financial stress. Here are some tips to well manage your pocket:

• Invest some of your money if possible.

• Have a bank account with an increasing amount of savings (27) _________ month by setting realistic financial goals.

• Buy (28) _________ within your price range.

• Track your spending carefully to avoid (29) _________ expenditure on unnecessary purchases.

•  Prioritise things that bring you lasting happiness and financial security to get your money's (30) _________!

(Adapted from https://www.thebalancemoney.com)

Choose the best answer for number 29:

Bốn trong số các hoạt động của quy trình bảo dưỡng, sửa chữa máy cơ khí động lực gồm: (a) Tháo lắp, sửa chữa và khắc phục sự cố, (b) Đánh giá và bảo dưỡng, (c) Kiểm tra, chuẩn đoán trạng thái kĩ thuật, (d) Kiểm tra trước khi xuất xưởng. Thứ tự đúng của các hoạt động trên trong quy trình bảo dưỡng, sửa chữa máy cơ khí động lực là:

Tập xác định của hàm số \(y=\frac{1}{x}+\sqrt{3-x}\) là

Hình thức sản xuất kinh doanh với các thành viên có tài sản chung, cùng đóng góp công sức để sản xuất kinh doanh được gọi là gì?

Trong các ý sau đây, có bao nhiêu đặc điểm là đặc điểm chung của các cấp tổ chức sống cơ bản?

1) Tổ chức theo nguyên tắc thứ bậc.

2) Là hệ kín, có tính bền vững và ổn định.

3) Liên tục tiến hóa.

4) Là hệ mở có khả năng tự điều chỉnh.

5) Thường xuyên trao đổi chất với môi trường.

Truyền thống yêu nước của dân tộc ta được thể hiện rõ nét nhất trong việc

Ngân sách của nhà nước nước ta bao gồm tất cả bao nhiêu loại chính?

Read the following passage about online 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.

           Virtual assistants, AI-powered software applications, (18) ________. These tools experienced significant growth and gained widespread popularity in 2020. Designed to understand spoken or typed language, they represent (19) ________. Unlike basic software programs, virtual assistants can interact naturally with users, making them useful across various fields, from customer support to productivity enhancement.

           Powered by natural language processing (NLP), (20) ________. They analyze and interpret user inputs to provide relevant responses or perform tasks, learning and adapting based on user behavior over time. Thus, virtual assistants (21) ________ and continuously enhance the accuracy of their responses, are becoming increasingly significant on a global scale. Despite their benefits, these systems also have limitations, particularly in their responses to complex queries or emotionally sensitive topics, as they lack true human understanding.

           Recognizing these limitations, (22) ________. Many developers are focused on refining AI interactions to be more accurate and ethically sounD. As technology progresses, the integration of AI tools into human workflows is expected to become increasingly seamless. Virtual assistants may soon become even more integral to daily life, assisting with a broader range of personal and professional needs.

Khẳng định nào sau đây về Python là đúng?

Năm 1930, Nguyễn Ái Quốc có hoạt động nào sau đây?