Bảng chân lí bên mô tả liên hệ logic giữa các đầu vào – ra của cổng logic

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34. Foot-racing is a popular activity in the United States. It is seen not only as a competitive sport but also as a way to exercise, to enjoy the camaraderie of like-minded people, and to donate money to a good cause. Though serious runners may spend months training to compete, other runners and walkers might not train at all. Those not competing to win might run in an effort to beat their own time or simply to enjoy the fun and exercise. People of all ages, from those of less than one year (who may be pushed in strollers) to those in their eighties, enter into this sport. The races are held on city streets, on college campuses, through parks, and in suburban areas, and they are commonly 5 to 10 kilometers in length. The largest footrace in the world is the 12-kilometer Bay to Breakers race that is held in San Francisco every spring. This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific Ocean. There may be 80,000 or more people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win and who might finish in as little as 34 minutes. Behind them are the thousands who take several hours to finish. In the back of the race are those who dress in costumes and come just for fun. One year there was a group of men who dressed like Elvis Presley, and another group consisted of firefighters who were tied together in a long line and who were carrying a fire-hose. There was even a bridal party, in which the bride was dressed in a long white gown and the groom wore a tuxedo. The bride and groom threw flowers to bystanders, and they were actually married at some point along the route.

In what lines does the author give reasons for why people enter footraces?

Biết rằng đồ thị hàm số \(y = \frac{{ax + b}}{{cx + d}}(a,b,c,d \in \mathbb{R})\) ở hình bên có tâm đối xứng là một trong bốn điểm sau đây, điểm đó là điểm nào?

Một chất điểm chuyển động trên đường tròn bán kính R=0,1m. Chu kì là 0,25s. Cho\({\pi ^2} = 10\). Gia tốc hướng tâm của chất điểm là

Trong tình huống dưới đây, những ai đã vi phạm quyền và nghĩa vụ công dân về bảo vệ Tổ quốc?

"Ông Đ lập một nhóm kín trên mạng xã hội tập hợp những người có tư tưởng bất mãn với chính quyền và tổ chức họp bàn kế hoạch, chuẩn bị vũ khí, công cụ hỗ trợ dự kiến tổ chức một cuộc bạo loạn với mục đích gây mất trật tự xã hội, an ninh chính trị nhằm chống phá Nhà nước Việt Nam. Nhóm người này thường xuyên hội họp, bàn bạc kế hoạch tại nhà riêng của ông Đ tại xã X vào sáng chủ nhật hàng tuần. Anh K, chị V là hàng xóm của ông Đ. Nhận thấy những dấu hiệu khả nghi, anh K và chị V đã bí mật trình báo tới lực lượng công an xã X".

Rửa xe, đánh bóng vỏ xe là công việc bảo dưỡng cơ bản nào?

Read the following passage about Renewable energy sources 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.

          [I] Renewable energy sources, such as solar, wind, and hydroelectric power, have gained global popularity as a sustainable alternative to fossil fuels. [II] Unlike coal and oil, renewable energy generates electricity without releasing harmful emissions, making it a cleaner option for the environment (Jacobson et al., 2017). [III] However, despite the advantages of renewable energy, there are still notable challenges that need to be addressed for it to fully replace traditional energy sources (Ell Abban et al., 2014). [IV]

          One major advantage of renewable energy is its sustainability. Renewable resources, unlike fossil fuels, are naturally replenished and do not deplete over time. For instance, solar power harnesses energy from sunlight, which is virtually endless. In addition, renewable energy contributes to reducing greenhouse gas emissions, which helps combat climate change. Many countries are increasingly investing in renewable technologies to decrease their carbon footprint and meet international climate goals.

          However, renewable energy has certain limitations. One significant issue is its intermittent nature; for example, solar and wind power depend on weather conditions, making it difficult to generate a consistent power supply. This variability can disrupt the energy grid, which relies on a steady supply of electricity to meet demand. Another challenge is the high initial cost of setting up renewable energy facilities. Although prices have decreased in recent years, installing solar panels or wind turbines still requires substantial upfront investment (IRENA, 2019).

          Despite these challenges, advancements in technology are gradually making renewable energy more efficient and accessible. Improved energy storage systems, such as batteries, allow excess power generated during favourable conditions to be stored and used later, ensuring a more reliable energy supply. As technology and infrastructure improve, renewable energy may eventually.

According to paragraph 2, which of the following is NOT an advantage of renewable energy?

Households are advised to replace current lightbulbs with more_________ ones.

Nhận định nào dưới đây thể hiện đặc điểm của bộ máy nhà nước ta?

Cặp dấu [ ] dùng để?

Cơ cấu kinh tế là tập hợp các yếu tố nào?