Một nhà máy điện hạt nhân có công suất phát điện 1020 MW, dùng năng lượng phân hạch của hạt nhân \(_{92}^{235}{\rm{U}}\) với hiệu suất \(33\% \). Biết mỗi phân hạch của \(_{92}^{235}{\rm{U}}\) sinh ra năng lượng trung bình khoảng 200 MeV và khối lượng mol của \(_{92}^{235}{\rm{U}}\) là \(235\;{\rm{g}}/{\rm{mol}}\). Khối lượng \(_{92}^{235}{\rm{U}}\) mà nhà máy điện hạt nhân trên tiêu thụ trong 1 năm bằng \({\rm{x}} \cdot {10^3}(\;{\rm{kg}})\). Tìm x (làm tròn kết quả đến chữ số hàng phần mười).

Âm mưu nhất quán của các triều đại phong kiến phương Bắc với nước ta là đều nhằm

Ô nhiễm môi trường nào sau đây đáng chú ý nhất ở nước ta hiện nay?

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 Our Luxurious Eco-Friendly Yoga Mats!

Are you looking for the (1)________yoga mat? 

 Our mats are made from natural materials that are not only sustainable but also incredibly durable.

Experience the comfort of our thick blue (2)_________. It provides the perfect surface for all your yoga needs, whether you’re a beginner or an expert.

Many customers have shared how our mats have transformed their practice, (3)__________ them to achieve greater balance and flexibility. Join our community and see the difference! You can show yoga (4)________your friends with our mats every day.

(5)_________advantage of this opportunity to enhance your yoga experience!

Loving (6)_________ yoga is essential for maintaining a healthy lifestyle, and using our mats will help you achieve that.

Nơi nào trong năm luôn có thời gian ngày và đêm dài bằng nhau?

Hình ảnh nào sau đây thể hiện bệnh vàng lá gân xanh?

Read the following passage about the impact of tweeting on everybody 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

EVERYBODY’S TWEETING

Twitter (18) ________________ for a podcasting website, but then people realized that it offered them the power to connect with millions of people instantly. Suddenly, everyone had a voice, as long as it wasn’t longer than 140 characters. But what are we using it for, and just how is Twitter changing the way we do things?

Perhaps the greatest impact Twitter has had is on breaking news. Before Twitter, (19) _____________ before finally broadcasting it on the radio or TV. These days, anyone who happens to be in the right place at the right time with a Twitter account can post news the second it happens. For example, Janis Krums posted a photo and a tweet when he witnessed a US flight making an emergency landing in the Hudson River. He must never have imagined that he would break the story to the world.

Following Pop Idols

Young people have always loved to follow their pop idols, and Twitter has made it a whole lot easier. Before the Internet, teenagers used to join the fan clubs of their favorite bands and write letters to their heroes,

(20) _________________ to get a reply written by the club secretary. Today’s teenagers don’t need to wait. By following their idols on Twitter, they get all the news the minute it happens: their meals, activities, or even thoughts. And all the news comes directly from the bands themselves.

Creating Movements

Twitter allows people who think the same way to get together and (21) ______________. These problems may be cyberbullying, sexism, or racism. They can share information, organize campaigns, and put pressure on related departments. Twitter has given the man and woman on the street the power to make a difference.

Identifying the source of a piece of news

It’s good to get an idea of the background of a person who says or writes something. Are they an impartial expert or someone who wants to change your opinion to suit their own agenda? For example, this statement about a flu epidemic, “Patients can already spread the virus a day before they’ve even fallen sick themselves”, is more likely to come from a doctor than a politician. On the other hand, “We have to stop people who are carrying the virus from getting into the country” is more likely to come from a politician. (22) _____________, you’re better able to decide how much importance to give it and whether you can really trust what they say.

Pha của dao động được dùng để xác định

Công thức tính tốc độ dài của chuyển động tròn đều là

Choose the words/ phrases that are SAME in meaning to the underlined parts.

In this round, the contestants have to form pairs and choose a song to perform with their partners.

Hóa học là ngành khoa học thuộc lĩnh vực

Biểu đồ dưới đây thể hiện nội dung nào về ngành thủy sản của nước ta giai đoạn 2015 - 2022? (Niên giám thống kê Việt Nam 2023, Nxb Thống kê, 2024):