Trong y học, tia nào sau đây thường được sử dụng để tiệt trùng các dụng cụ phẫu thuật?
Trong y học, tia nào sau đây thường được sử dụng để tiệt trùng các dụng cụ phẫu thuật?
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Tia $\alpha$ và $\gamma$ có tính ion hóa mạnh, có thể gây hại cho sức khỏe nên không dùng để tiệt trùng thường xuyên.
Tia hồng ngoại chủ yếu được dùng để sưởi ấm và không có khả năng diệt khuẩn.
Câu hỏi liên quan
Phản ứng xảy ra khi sạc của một pin Li-ion là:
Cuộc Cách mạng Tân Hợi ở Trung Quốc (năm 1911) đã
Khu vực nào sau đây chịu tác động rất nhỏ của nạn đói trên thế giới?
Healthy mind, healthy body
“A healthy mind lives in a healthy body” is a saying (1) ______ to have often been used by the ancient Greeks. Thousands of years later, the same idea still applies. According to health experts, it’s advisable (2) ______ eight to ten glasses of water every day. However, water itself is not enough; a balanced diet is essential, too. A healthy body naturally is the result of doing exercise. Many people, however, do not like gyms and object to going there for different reasons. Some, for instance, say that aerobic sessions are too difficult to follow while others say that gyms are just too expensive. Many people also say that they have (3) ______ in finding time to exercise due to their busy lifestyle, but the truth is that everyone can make a little time every now and then. Regardless of the way people choose to exercise, it is important to remember that there’s no point (4) ______ doing it only for a short period of time. Last but not least, (5) ______ a positive attitude and doing away with negative thoughts contribute to one’s good health. In short, following (6) ______ surely helps in having a healthy mind and body.
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.
Hàm số nào sau đây có đồ thị như hình vẽ?
- Phần năng lượng nhiệt truyền từ vật có nhiệt độ cao hơn sang vật có nhiệt độ thấp hơn được gọi là
Tài chính liên quan đến vấn đề nào?
- Cho hàm số
có đồ thị
như hình vẽ. Tính diện tích
của hình phẳng được tô như trong hình.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer.
Global Issues: Gender Equality and Women’s Empowerment
Gender equality means that men and women have equal power and equal opportunities for financial independence, education, and personal development. Women's empowerment is a critical aspect of achieving gender equality. It includes increasing a woman's sense of self-worth, her decision-making power, her access to opportunities and resources, her power and control over her own life inside and outside the home, and her ability to effect change. Yet gender issues are not focused on women alone, but on the relationship between men and women in society. The actions and attitudes of men and boys play an essential role in achieving gender equality.
Education is a key area of focus. Although the world is making progress in achieving gender parity in education, girls still make up a higher percentage of out-of-school children than boys. Approximately one quarter of girls in the developing world do not attend school. Typically, families with limited means who cannot afford costs such as school fees, uniforms, and supplies for all of their children will prioritize education for their sons. Families may also rely on girls' labor for household chores, carrying water, and childcare, leaving limited time for schooling. But prioritizing girls' education provides perhaps the single highest return on investment in the developing world. An educated girl is more likely to postpone marriage, raise a smaller family, have healthier children, and send her own children to school. She has more opportunities to earn an income and to participate in political processes, and she is less likely to become infected with HIV.
Women's health and safety is another important area. HIV/AIDS is becoming an increasingly impactful issue for women. This can be related to women having fewer opportunities for health education, unequal power in sexual partnership, or as a result of gender-based violence. Maternal health is also an issue of specific concern. In many countries, women have limited access to prenatal and infant care, and are more likely to experience complications during pregnancy and childbirth. This is a critical concern in countries where girls marry and have children before they are ready; often well before the age of 18. Quality maternal health care can provide an important entry point for information and services that empower mothers as informed decision-makers concerning their own health and the health of their children.
A final area of focus in attaining gender equality is women's economic and political empowerment. Though women comprise more than 50% of the world's population, they only own 1% of the world's wealth. Throughout the world, women and girls perform long hours of unpaid domestic work. In some places, women still lack rights to own land or to inherit property, obtain access to credit, earn income, or to move up in their workplace, free from job discrimination. At all levels, including at home and in the public arena, women are widely underrepresented as decision-makers. In legislatures around the world, women are outnumbered 4 to 1, yet women's political participation is crucial for achieving gender equality and genuine democracy.
According the passage, what is the meaning of “gender equality”?
Cho tứ diện ABCD có có tất cả các cạnh đều bằng a. Gọi M là trung điểm của AB. Mp(P) qua M và song song với BC và CD cắt tứ diện theo 1 thiết diện là:
Hoạt động con người sử dụng các sản phẩm được sản xuất để thoả mãn nhu cầu vật chất và tinh thần của mình được gọi là gì?
Read the following passage about the e-waste crisis and mark the letters A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Electronic waste, commonly known as e-waste, refers to discarded electronic devices like smartphones, computers, and household appliances. [II] As technology rapidly advances, many of these devices become outdated quickly, leading to an increase in e-waste globally. [III] Experts estimate that millions of tons of e-waste are generated annually, and the numbers continue to rise as people upgrade their gadgets more frequently. [IV]
The improper disposal of e-waste presents significant environmental and health risks. When e-waste is dumped in landfills, it often releases harmful chemicals, such as lead and mercury into the soil and water, which can wreak havoc on ecosystems and pose serious health risks to nearby communities. Moreover, a large portion of e-waste is transported to developing countries, where regulations on electronic disposal may be less strict. Here, workers, often without adequate protection, dismantle electronic devices by hand to retrieve valuable metals like gold and copper, exposing themselves to toxic substances.
To address this growing problem, many countries and organizations are promoting e-waste recycling programs. These initiatives encourage consumers to recycle old electronics responsibly, rather than discarding them. By doing so, valuable materials can be reused, reducing the demand for mining new resources and helping to minimize environmental damage. Additionally, some companies are adopting sustainable design strategies, producing products that are easier to repair or upgrade, thereby extending their lifespan.
Public awareness about the impacts of e-waste is gradually increasing, and more people are becoming motivated to make eco-friendly choices. However, achieving global cooperation remains challenging, as effective solutions require collaboration across borders.
(Adapted from The Guardian)
Khi chất thải điện tử được đổ vào các bãi rác, nó thường giải phóng các hóa chất có hại, như chì và thủy ngân vào đất và nước, có thể tàn phá hệ sinh thái và gây ra rủi ro sức khỏe nghiêm trọng cho các cộng đồng lân cận.Which of the following best summarises paragraph 3?
Minh Trị Thiên hoàng ban hành Hiến pháp vào năm nào?
Hai bộ sử thi nổi tiếng nhất của Ấn Độ thời kì cổ đại là
- Trên đất liền, nước ta không có chung biên giới với quốc gia nào sau đây?
Yếu tố nào sau đây thể hiện rõ rệt nhất sự khác biệt giữa mạng LAN và Internet trong bối cảnh sử dụng và quản lý dữ liệu?
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.
Humanitarian Imprints: Inspiring Stories Shaping 2025
Be Inspired. Take Action. Make Change.
Do you want to discover how ordinary people create extraordinary change in difficult global situations? The global (1)_________ conference will showcase amazing success stories from around the world. Join us for this life-changing experience!
Our passionate (2)_________ need your generous support to continue their vital mission abroad.
Meet brave volunteers (3)_________ communities recover from devastating natural disasters throughout developing countries. Our organization sends essential supplies (4)_________ affected populations during emergencies.
Let's (5)_________ it, we all have the power to change someone's life for the better every single day. We invite you to join our growing movement and start (6)_________ a meaningful difference in local communities today!
When: May 20-22, 2025
Where: Central Exhibition Hall
Time: 9:00 AM - 7:00 PM
Entry: Free admission
Contact us: info@humanitarianimprints.org | 555-789-0123
Together, we can build a better world!
Hai chất nào sau đây được cho vào muối ăn để bổ sung nguyên tố iodine, phòng ngừa bệnh bướu cổ ở người?
Cho \(A\) là tập hợp các số tự nhiên chẵn không lớn hơn \(10\), \(B=\left\{ n\in \mathbb{N}\,|\,n\le 6 \right\}\), \(C=\left\{ n\in \mathbb{N}\,|\,4\le n\le 10 \right\}\). Tập hợp \(A\cap \left( B\cup C \right)\) là
Một vật được thả rơi tự do. Lấy gia tốc rơi tự do là 9,8 m/s2. Hỏi trong giây thứ ba kể từ lúc được thả rơi thì vận tốc của vật đã tăng lên bao nhiêu?