Việc thực hiện quyền học tập của công dân không mang lại ý nghĩa nào sau đây?

Nếu hiệu điện thế giữa hai bản tụ tăng 4 lần thì điện dung của tụ

Read the following passage about the Science in Service of Humanity 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.

Science has come out of its shell in laboratories to become a powerful force for human advancement. Modern scientific endeavors increasingly focus on addressing real-world challenges affecting communities globally. From developing vaccines that save millions to creating technologies connecting people across continents, science serves humanity in countless ways. This shift represents a fundamental evolution in how we perceive scientific progress—not merely academic pursuit but a practical tool for improving lives and solving pressing problems.

[I] Medical breakthroughs exemplify how science directly benefits humanity. [II] For instance, gene therapy offers hope for those with inherited conditions, while artificial intelligence helps diagnose diseases earlier and more accurately. [III] These advancements didn't happen overnight; scientists had to burn the midnight oil for years before achieving success. [IV] Their perseverance demonstrates that when science targets humanitarian goals, results can transform society profoundly.

Environmental science has emerged as another crucial domain where laboratory work translates into human welfare. Climate scientists provide data informing policy decisions affecting billions. Conservation biologists develop strategies to protect biodiversity, ensuring future generations benefit from natural resources. Agricultural researchers create drought-resistant crops helping communities withstand changing climate conditions. Despite these contributions, environmental science faces challenges including funding limitations, political resistance, and urgency of addressing accelerating climate change. Nevertheless, dedicated scientists continue their work, recognizing environmental health directly impacts human wellbeing.

The future of science in service of humanity looks increasingly collaborative and inclusive. Modern approaches incorporate diverse perspectives, including indigenous knowledge and community participation. Citizen science projects engage non-professionals in data collection, democratizing the scientific process. Open-access publishing makes research findings available to anyone with internet access, not just wealthy institutions. These developments suggest science's greatest potential lies in becoming more accessible and responsive to human needs. As we face complex global challenges, from pandemics to climate change, science serving humanity offers our best hope for a sustainable future.

Which of the following is TRUE according to the passage?

Một công suất điện 240 kW được truyền đi bằng dây dẫn có điện trở \(5,0\Omega .\) Biết điện áp ở đầu đường dây truyền đi là 6,0 kV. Hao phí năng lượng điện trên đường dây là

Cho đoạn tư liệu sau đây:

“ASEAN là một điều kỳ diệu sống động và mang hơi thở của cuộc sống hiện đại. Tại sao? Không một tổ chức khu vực nào khác đã làm được nhiều như Hiệp hội các quốc gia Đông Nam Á (ASEAN) trong việc cải thiện điều kiện sống của một bộ phận đáng kể nhân loại. Hơn 600 triệu người sống trong khu vực có bước tiến đáng kể trong 50 năm qua, kể từ khi Hiệp hội được thành lập. ASEAN đã mang lại hòa bình và thịnh vượng cho một khu vực từng gặp nhiều vấn đề, tạo ra sự hài hòa giữa các nền văn minh ở khu vực vốn đa dạng nhất hành tinh, mang lại niềm hy vọng cho người dân sống tại khu vực. ASEAN có thể cũng đóng vai trò như một chất xúc tác quan trọng cho sự trỗi dậy một cách hòa bình của Trung Quốc”.

(Kishore Mahbubani & Jeffery Sng (Người dịch: Phạm Bích Phục), ASEAN Diệu Kỳ – Vì Một Cộng Đồng ASEAN Phát Triển Bền Vững Và Thịnh Vượng - Nhà xuất bản Thế Giới, Hà Nội, 2017, tr.11).

Một trong những khâu quan trọng trong nghiên cứu, học tập, tìm hiểu lịch sử là:

Hoạt động phân chia các yếu tố sản xuất và phân chia sản phẩm cho các cá nhân tiêu dùng được gọi là gì?

Đồ thị của hàm số $y=x^{3}-3 x-1$ là đường cong nào trong các đường cong sau?

Thế nào là tỉ lệ tăng tự nhiên dân số?

Tiện ích "Defragment" của hệ điều hành có tác dụng gì?

Read the following passage about managing change 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. 

Growing up in Athens, Greece, Lydia Borsi remembers feeling tested when she tried to deal with mental health issues. Borsi says she had been seeing a therapist for anxiety. But she notes that people in Greece do not openly discuss mental health issues, which also get little attention in general healthcare services. “It was a lot more secretive. And people thought that I was a lot more unique,” Borsi said.

That all changed in 2017 when she moved to the United States to study at the University of Rochester in Rochester, New York. “When I came here, I really liked that people were not afraid to speak up about mental health and say that it’s important,” she said. The university was very supportive of her needs and offered plenty of information. She also became involved with a school group called Active Minds that helps students deal with mental health issues. [A]

Then due to the spread of the novel coronavirus, the University of Rochester had to move all its classes and some of its mental health resources online. Luckily, Borsi was able to connect with a mental health expert outside the school, in the local community. [B]

But as many of her American friends returned home, Borsi was stuck. Greece had succeeded in limiting the spread of the virus within its borders, but flights there from the U.S. are barred until July. Also, the health crisis has put her plans to seek admission to medical school in Britain on hold. [C] And she is not alone.

[D] In April, Active Minds launched a survey of over 2,000 students at U.S. colleges and universities. The study found that over 80 percent of those asked said the coronavirus crisis had negatively affected their mental health. One in five said it has affected them severely.

Laura Horne, chief program officer at Active Minds, says the findings are especially troubling given that the crisis is only going to make it harder for colleges and universities to help these students. “Colleges and universities had to pivot rather quickly to respond to COVID-19 and figure out all facets of university life, including mental health services. Now they have to figure out how to communicate with students,” Horne said.

Frank Chen is a Houston, Texas-based psychiatrist who has worked with college-age young adults. He points out that individuals at that age are in an important stage of their mental development. And college can be a difficult experience for students with or without mental health issues, as they balance work, studies, and personal relationships. Adding a major world event, like the spread of the coronavirus, makes it very difficult to predict what the long-term psychological effects might be. “I don’t think that there’s another event in the history of the people who are alive now that can really measure up to this,” said Chen.

The word ‘they’ in paragraph 6 refers to

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