Cho các tập hợp:

A = {x ∈ ℤ | -4 ≤ x ≤ 5};

B = {x ∈ ℤ | -2 ≤ x ≤ 6};

C = {x ∈ ℤ | 0 ≤ x ≤ 1}.

Xác định tập hợp X = (A ∩ B)\C. Câu nào sau đây đúng?

AYVP, or “ASEAN Youth Volunteer Program,” is a special program for young people in the ASEAN region (a group of Southeast Asian countries). It helps them get (631) ____________ and make a difference. This program (632) ____________ together young people from different ASEAN countries to work together, promote cross-cultural understanding, and develop leadership skills.

AYVP is also designed to address social issues of concern in ASEAN AYVP’s main goal is to help young people feel connected to the ASEAN community and encourage them to work together to solve problems. (633) ____________ helps them not only gain valuable hands-on experience in volunteer work but also build lasting friendships and networks with their (634) ____________ from neighboring countries. This helps them feel responsible for improving the region.

Overall, the ASEAN Youth Volunteer Program shows (635) ____________ for young people to solve big problems. By giving young people the chance to make positive changes, AYVP helps the ASEAN community grow stronger and creates a better future for everyone.

Choose A, B , C or D to complete the dialogue.

David: I apologize for missing your birthday party yesterday. I got caught up at work and lost track of time.

Mia: ______

Cho hai lò xo có độ cứng k₁ và k₂. Khi treo vào lò xo k₁ vật có khối lượng 2 kg thì khi cân bằng lò xo dãn 2 cm, khi treo vật có khối lượng 6 kg vào lò xo k₂ thì khi cân bằng lò xo dãn 12 cm. Khi đó ta có:

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.

EXPLORE THE POWER OF SOCIAL MEDIA!

Start your social media journey today and discover a world of endless possibilities

Connect, Share, and Learn!

Social media has changed the way we (7)______, learn, and share ideas. It allows us to stay in touch with friends, (8)______ new topics, and share our daily moments with the world. Whether you love posting pictures or watching videos, social media is a space for everyone.

What Makes Social Media Great?

• Stay Connected – (9)______ with family and friends, no matter how far they are.
• Learn Something New – Follow pages about hobbies, news, or (10)______ skills you want to improve.
• Express Yourself – Share your thoughts, photos, and videos with (11)______ users around the world.

Social Media for Everyone!

Social media is (12)______ for fun but it’s also a tool for learning, building friendships, and sharing your voice. Join a community today and see how it can make your life more exciting and connected!

Nhận định nào dưới đây là đúng về tình trạng tài nguyên sinh vật nước ta?

Hàm số nào dưới đây có đồ thị là đường cong như hình vẽ?

Bước 7 của quy trình thiết kế kĩ thuật là:

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

Đâu là ngành nghề liên quan đến sinh học thực vật, động vật và người?

Bộ máy nhà nước Cộng hoà xã hội chủ nghĩa Việt Nam hiện nay mang tính pháp quyền xã hội chủ nghĩa thực hiện quản lí mọi mặt của đời sống xã hội dưới sự lãnh đạo của ai?

Một cách đúng khi bảo vệ thông tin trên máy tính cá nhân là

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions:

Tom never stays in one place for long. He always gets _________ feet and sets off on his travels again.

Giá trị nghệ thuật của văn bản Đăm Săn chiến thắng Mtao Mxây là gì?

Một vật được thả rơi tự do. Lấy gia tốc rơi tự do là 9,8 m/s². Hỏi quãng đường vật đi được trong giây thứ ba kể từ lúc được thả rơi là bao nhiêu?

Thành phần nào của tế bào vi khuẩn quyết định kết quả nhuộm Gram?

Khi đọc bản vẽ chi tiết, người ta đọc khung tên để biết:

Ý không phản ánh đúng sự phát triển của Phật giáo ở nước ta thời Đinh, Tiền Lê, Lí, Trần là

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 from 31 to 40.

Biting into a ripe, juicy fruit brings a smile to many people’s faces. But eating that same fruit a week before it is ripe probably wouldn’t be as enjoyable! Unripe fruits are often hard and bitter, but that serves a purpose. The hard exterior of an unripe fruit protects the developing seed inside. After a seed fully develops inside the fruit, the fruit changes color, softens, and gets sweeter to become more attractive to animals and humans. These organisms eat the fruit and spread its seeds, ensuring the plant’s survival and regrowth.

But how does a fruit ripen? The ripening process involves many complex chemical reactions. When a fruit ripens, it goes through a chemical change. A chemical change happens when bonds within molecules break, and the atoms that once formed them regroup into new molecules. Chemical changes are irreversible. Once a fruit ripens, it cannot become unripe again.

One molecule responsible for this chemical change is ethylene. Ethylene (C2H4) is a colorless gas made up of carbon and hydrogen atoms. (I). It is a naturally occurring molecule in the atmosphere. (II). It is also an important plant hormone. (III). Plants release ethylene through the growing tips of roots, flowers, and ripening fruit. (IV). Although ethylene serves other purposes in plants, one of its main purposes is to trigger the chemical reactions that cause fruits to ripen. As the fruit matures, oxygen in the air helps stimulate the production of ethylene. This ethylene production is a signal that begins fruit ripening. For that reason, unripe fruits have low levels of ethylene, while ripe fruits have higher levels of ethylene. Most fruits produce ethylene and respond to ethylene in the atmosphere.

Although fruits require ethylene to ripen, different types of fruits respond to this molecule in two distinct ways: non-climacteric fruits and climacteric fruits. Non-climacteric fruits do not ripen after harvesting. They produce very little ethylene of their own. Climacteric fruits, on the other hand, continue to ripen after they are picked. These fruits produce a large amount of ethylene. Climacteric fruits can also speed up the ripening process of other fruits nearby since they release high levels of ethylene into the air.  

The phrase These organisms in paragraph 1 refers to...