Hạt nhân nguyên tử X có 17 proton, 18 neutron. Cấu hình electron của ion X^- là

Cho tập hợp $D$. Mệnh đề nào sau đây sai?

Mệnh đề phủ định của mệnh đề: “ Số 6 chia hết cho 2 và 3” là

Phân lớp d có thể chứa số electron tối đa là

Một lớp có 20 học sinh nam và 18 học sinh nữ. Chọn ngẫu nhiên một học sinh. Xác suất chọn được 1 học sinh nữ là:

Nhiệm vụ của hệ thống lái là:

Ai là người ký vào Hiến pháp?

Trong các nhận định dưới đây về hiệu điện thế, nhận định nào không đúng?

Read the following passage about Innovation Driven by Environmental Need 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 23 to 30.

Green startups have emerged as forces for positive environmental change. These companies create sustainable solutions for urgent ecological challenges. Unlike traditional businesses prioritizing profits, green startups balance financial goals with environmental responsibility. Many were founded by young entrepreneurs who witnessed environmental degradation and felt compelled to act. Their mission extends beyond making money; they aim to heal our planet while building successful businesses.

Eco-friendly startups have grown across various sectors. From renewable energy and sustainable agriculture to zero-waste products, these companies revolutionize how we interact with our environment. GreenWave developed ocean farming requiring no fertilizers while capturing carbon. Notpla created edible packaging from seaweed as a plastic alternative. These innovations show how creativity and environmental consciousness produce extraordinary results. Their success proves sustainability and profitability can coexist.

Funding for green startups has increased in the past decade. Investors recognize supporting environmentally responsible businesses is both ethical and financially prudent. Venture capitalists have established funds dedicated to sustainable startups, providing capital to scale operations. Government grants have become more accessible to entrepreneurs developing green technologies. Despite positive developments, green startups still face regulatory hurdles and competition from established industries resistant to change.

The future looks promising for environmental businesses as consumers shift toward sustainable products. Studies show modern consumers, particularly younger generations, will pay premium prices for eco-friendly alternatives. This trend creates fertile ground for green startups to thrive. As climate concerns intensify, demand for innovative environmental solutions will grow stronger. Green startups are positioned to meet this demand while driving positive change, demonstrating business innovation and environmental stewardship can create a sustainable world.

The word “Their” in paragraph 2 refers to _________.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions.

Taking Home the World Cup

Standing just 36 centimeters tall, the FIFA World Cup Trophy symbolizes the pinnacle of football achievement.  Every four years, teams worldwide compete for it, but no one ever takes the trophy home. Made of 18-carat gold, the original trophy remains under FIFA's protection, with winners receiving only a replica. This measure safeguards it from theft, as the trophy has been stolen twice in its history.

The original trophy was made by a French sculptor, Abel LaFleur, and was called the “Jules Rimet Cup,” in honor of the founder of the World Cup tournament. Sometime during the first three World Cup events (1930, 1934, and 1938), the name changed to simply the “World Cup.” Then during World War II, not much was seen or heard of the trophy. It was being kept hidden in a shoe box under the bed of Dr. Ottorino Barassi, the Italian vice-president of FIFA, to prevent it from falling into the hands of the Nazi army. In 1966, the Cup was stolen during a public showing of the trophy prior to the World Cup tournament in England. Luckily, it was found a short time later, none the worse for wear, in a trash container by a little dog named Pickles. Four years later, Brazil earned permanent possession of the original trophy by winning its third World Cup title. Unfortunately, the trophy was stolen a second time in 1983 and was never recovered. The Brazilian Football Association had to have a duplicate trophy made.

(I) After the first trophy became the possession of Brazil’s football association, a new World Cup Trophy for FIFA was designed by an Italian artist, Silvio Gazzaniga, in 1974. (II) This trophy cannot be won outright, but remains in the possession of FIFA, and rest assured they are watching it very closely. Today, World Cup winners are awarded a replica of the trophy that is gold-plated, rather than solid gold like the real one. (III) Gazzaniga’s World Cup trophy weighs almost five kilograms. (IV) Its base contains two layers of a semi-precious stone called malachite, and has room for seventeen small plaques bearing the names of the winning teams---enough space to honor all the World Cup champions up to the year 2038. After that, a new trophy will have to be made.

Where in paragraph 3 does the following sentence best fit?

"It was a decision made to prevent the trophy from being stolen again."

Read of 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.

Colors of Humanity: Experience the World in One Place

Join our amazing cultural festival!

One culture might showcase exuberant, saturated colors in its artistic traditions, while (7)_________ artistic traditions cultivate an appreciation for more restrained, gentle chromatic expressions. Our festival (8)_________ cultures from around the world.

The (9)_________ on children's faces makes our event special. (10)_________ language differences, people connect through art.

The beauty of traditional (11)_________ attracts many visitors. A (12)_________ of food from different countries will be available to try.

Festival Details:

Date: June 15-17, 2025

Location: City Park

Free entry for children

Food and craft markets

Music and dance shows every hour

Contact: worldcolors@example.com | 555-0123

Đâu là cách tạo hình nền trong phân cảnh?

Chế phẩm vi khuẩn trừ sâu hiệu quả với:

Đâu là công nghệ chế biến sản phẩm chăn nuôi?

Cho đoạn chương trình sau:

Trong đoạn chương trình trên s được gọi là?

Lĩnh vực nào không thuộc an ninh phi truyền thống?

Nhân tố nào sau đây đã thúc đẩy toàn cầu hóa kinh tế diễn ra ngày càng mạnh mẽ?

Rút gọn biểu thức \(A = \frac{{1 - \cos \alpha + \cos 2\alpha }}{{\sin 2\alpha - \sin \alpha }}\)?

Read the passage carefully. Choose an option (A, B, C or D) that best answers each question from 23 to 30.

1. How do children learn about wildlife? And is what they learn the sort of thing they should be learning? It is my belief that children should not just be acquiring knowledge of animals but also developing attitudes and feelings towards them based on exposure to the real lives of animals in their natural habitats. But is this happening?

2. Some research in this area indicates that it is not. Learning about animals in school is often completely disconnected from the real lives of real animals, with the result that children often end up with little or no understanding or lasting knowledge of them. They learn factual information about animals, aimed at enabling them to identify them and have various abstract ideas about them, but that is the extent of their learning. Children's storybooks tend to personify animals as characters rather than teach about them.

3. For direct contact with wild and international animals, the only opportunity most children have is visiting a zoo. The educational benefit of this for children is often given as the main reason for doing it but research has shown that zoo visits seldom add to children's knowledge of animals – the animals are simply like exhibits in a museum that the children look at without engaging with them as living creatures. Children who belong to wildlife or environmental organizations or who watch wildlife TV programmes, however, show significantly higher knowledge than any other group of children studied in research. The studies show that if children learn about animals in their natural habitats, particularly through wildlife-based activities, they know more about them than they do as a result of visiting zoos or learning about them in the classroom.

4. Research has also been done into the attitudes of children towards animals. It shows that in general terms, children form strong attachments to individual animals, usually their pets, but do not have strong feelings for animals in general. This attitude is the norm regardless of the amount or kind of learning about animals they have at school. However, those children who watch television wildlife programs show an interest in and affection for wildlife in its natural environment, and their regard for animals in general is higher.

According to the third paragraph, which method is most effective for children to learn about animals?

Biển Ban-tích, biển đen và biển Ca-xpi nằm ở khu vực nào của Liên bang Nga?