Khi sử dụng lại các thông tin trên mạng cần lưu ý đến vấn đề nào?

Giá trị của \(A=\text{tan}{{5}^{\circ }}.\text{tan}{{10}^{\circ }}.\text{tan}{{15}^{\circ }}.....\text{tan}{{80}^{\circ }}.\text{tan}{{85}^{\circ }}\) là

Trong công nghiệp, người ta sử dụng phản ứng giữa chlorine với dung dịch nào sau đây để tạo ra nước Javel có tính oxi hóa mạnh phục vụ cho mục đích sát khuẩn, vệ sinh gia dụng?

Phương án nào sau đây không thuộc một trong những chức năng của thị trường?

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

A new law may soon be passed to deal with the problem.

“Triều đình nhà Nguyễn chính thức thừa nhận sáu tỉnh Nam Kỳ là đất thuộc Pháp, công nhận quyền đi lại, buôn bán, kiểm soát và điều tra tình hình ở Việt Nam của chúng”. Điều khoản trên được quy định trong Hiệp ước nào?

Đọc đoạn trích sau và trả lời câu hỏi:

Dốc lên khúc khuỷu, dốc thăm thẳm

Heo hút cồn mây súng ngửi trời

Ngàn thước lên cao, ngàn thước xuống

Nhà ai Pha Luông mưa xa khơi.

Anh bạn dãi dầu không bước nữa

Gục lên súng mũ bỏ quên đời!

(Tây Tiến, Quang Dũng)

Biện pháp nghệ thuật nhân hoá trong đoạn trích trên thể hiện nét riêng nào trong vẻ đẹp tâm hồn của người lính Tây Tiến?

Nếu xét ba gen, gen A gồm có 2 alen nằm trên NST X, thuộc vùng không tương đồng với NST Y. Gen B và gen C đều có 2 alen, nằm trên một NST thường và liên kết gen không hoàn toàn. Hỏi một cơ thể lưỡng bội có thể có tối đa bao nhiêu kiểu gen về các cặp alen đang xét?

Chọn khẳng định sai trong các khẳng định dưới đây?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. However, once the foundation is laid, the real work begins as they start building more complex systems of thought and understanding.

b. Learning a new language is challenging, especially at the beginning when students are overwhelmed by grammar rules and unfamiliar vocabulary.

c. With continuous practice, learners gradually develop confidence in their speaking, listening, and writing skills, although progress may seem slow at first.

d. Many language learners experience frustration early on, but it's important to remember that fluency comes with time and dedication.

e. The sense of accomplishment that comes from mastering a language makes the effort worthwhile, opening doors to new cultures and opportunities.

Mệnh đề nào dưới đây có mệnh đề đảo đúng?

Read the following passage about Asia’s culture and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions

[I] Chemicals are present everywhere in our environment, some of which occur naturally, while others are the result of human activities. [II]. They are found in the air, water, and soil, and can have both positive and negative impacts on the ecosystem. Some chemicals, like nutrients, help support life by promoting plant growth [III]. However, others, especially synthetic chemicals such as pesticides, fertilizers, and industrial waste, can be harmful to both the environment and human health. [IV]

The widespread use of pesticides and fertilizers in agriculture has been a major cause of chemical pollution. When these chemicals are used improperly or excessively, they can wash into rivers, lakes, and oceans, leading to water pollution. This runoff can also contribute to the depletion of oxygen in water bodies, a process known as eutrophication. Eutrophication harms aquatic life, disrupting ecosystems and causing the death of fish and other organisms that rely on oxygen.

Toxic chemicals such as heavy metals (e.g., mercury and lead) pose additional threats to the environment and human health. These substances can accumulate in the food chain, starting from plants and animals in contaminated areas and eventually reaching humans. Long-term exposure to these chemicals can lead to serious health issues, including neurological disorders, cancer, and other chronic conditions. Many countries have established regulations to limit the use of harmful chemicals, but enforcement remains a challenge.

Efforts to reduce chemical pollution involve a combination of government regulations, technological innovations, and public awareness. Governments worldwide have introduced stricter rules on the use of hazardous chemicals and encouraged the development of eco-friendly alternatives. These regulations aim to limit the harmful impact of chemicals on the environment, encouraging industries to adopt safer practices. Environmental organizations play a vital role in monitoring chemical pollution, raising awareness, and advocating for cleaner technologies. They work closely with policymakers to ensure effective enforcement of environmental laws. While progress has been made, ongoing efforts are needed to address emerging challenges and ensure a safer and healthier environment for future generations.

According to paragraph II, which of the following is NOT a consequence of chemical pollution?

Học liệu điện tử thuộc loại hình dịch vụ nào sau đây trong ứng dụng kĩ thuật điện tử?

Tình huống truyện đặc biệt có tác dụng:

Bản đồ di truyền là sơ đồ thể hiện vị trí của gene (locus) trên nhiễm sắc thể; được xây dựng dựa vào tần số trao đổi chéo (hoán vị gene) giữa hai gene. T. H. Morgan và cộng sự đã lập bản đồ của 2 gene màu sắc thân (B, b) và chiều dài cánh (V, v) ở ruồi giấm như sau:

Theo lí thuyết, phép lai P: ♀\(\frac{BV}{bv}\)x ♂\(\frac{bv}{bv}\) tạo ra F1 có biến dị tổ hợp chiếm tỉ lệ bao nhiêu?

Read the following passage about Building Understanding Across Nations 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.

In our interconnected world, cultural ambassadors play a vital role in bridging the gaps between different nations and peoples. These dedicated individuals and groups serve as links between cultures, fostering mutual understanding and respect through various activities and programs. Their mission is to showcase their own cultural heritage while learning about and appreciating others, creating pathways for meaningful dialogue and lasting connections across borders.

Cultural ambassadors employ numerous methods to achieve their goals. They organize traditional festivals and art exhibitions that display unique customs, allowing visitors to experience different cultures firsthand. Language exchange programs enable people to communicate more effectively, while cultural workshops teach traditional crafts, music, and dance. These ambassadors also utilize digital platforms to reach wider audiences, sharing stories and traditions through social media and online events that connect people from different corners of the world.

Despite their important work, cultural ambassadors face several challenges in their mission. Stereotypes and prejudices can create barriers to understanding, while language differences sometimes lead to misunderstandings. Limited resources and funding may restrict their activities, and political tensions between nations can complicate their efforts. However, these dedicated individuals persist in their work, believing that personal connections and shared experiences can overcome these obstacles and promote harmony among different communities.

Looking ahead, the role of cultural ambassadors becomes increasingly significant in our global society. Their efforts to build bridges between nations contribute to reducing conflicts and fostering peace. Through their continued dedication to promoting cross-cultural understanding, these ambassadors help create a more inclusive and connected world where differences are celebrated rather than feared. This ongoing process of cultural exchange remains essential for building a future based on mutual respect and cooperation.

In which paragraph does the writer mention what challenges cultural ambassadors face in their work?

Dưới đây là một số ý kiến thảo luận về đơn vị lưu trữ dữ liệu trong máy tính.

Ứng dụng công nghệ chuẩn đoán di truyền trong chuẩn đoán bệnh cho vật nuôi có ưu điểm gì?

Hoạt động của chủ thể trung gian giúp ích gì cho người sản xuất và người tiêu dùng?