Trong bốn hạt nhân \(_{52}^{130}{\rm{Te}},_{54}^{134}{\rm{Xe}},_{56}^{132}{\rm{Ba}},_{53}^{127}{\rm{I}},\) hạt nhân có bán kính gần nhất với bán kính của hạt nhân \(_{54}^{130}{\rm{Xe}}\) là

Tôi mồ côi cha năm hai tuổi

Mẹ tôi thương con không lấy chồng

Trồng dâu, nuôi tằm, dệt vải

Nuôi tôi đến ngày lớn khôn.

Hai mươi năm qua tôi vẫn nhớ

Ngày ấy tôi mới lên năm

Có lần tôi nói dối mẹ

Hôm sau tưởng phải ăn đòn.

Nhưng không, mẹ tôi chỉ buồn

Ôm tôi hôn lên mái tóc

- Con ơi

trước khi nhắm mắt

Cha con dặn con suốt đời

Phải làm một người chân thật…

                   (Trích Lời mẹ dặn – Phùng Quán)

Xác định nội dung chính của đoạn thơ trên.

Giả sử \(x_{1}, x_{2}\) là nghiệm của phương trình \(x^{2}-(m+2) x+m^{2}+1=0\). Khi đó giá trị lớn nhất của biểu thức \(P=4\left(x_{1}+x_{2}\right)-x_{1} x_{2}\) bằng:

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.

Why do girls still make up a higher percentage of out-of-school children than boys?

Trong tình huống dưới đây, ông A đã thực hiện quyền nào của công dân?

"Ông A không đồng ý với quyết định thu hồi lô hàng hoá do vi phạm về chất lượng của chi cục quản lí thị trường X. Ông A đã làm đơn đến cơ quan có thẩm quyền, đề nghị họ xem xét lại sự việc. Trong thời gian chờ đợi giải quyết, ông A đã yêu cầu áp dụng các biện pháp để tránh hư hỏng lỗ hàng hoá của mình".

Read the following passage about the A Vision of a Harmonious Multicultural Society 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.

By 2050, our world will have undergone remarkable transformations in how different cultures coexist. The walls that once divided nations are vanishing into thin air as global citizens embrace diversity like never before. Technology will serve as the great equalizer, with translation devices making language barriers a thing of the past. In urban centers worldwide, neighborhoods will showcase architectural influences from multiple cultures, creating spaces where everyone feels at home regardless of their background. Public spaces will feature gardens with plants from different continents, symbolic of how various cultures can thrive together in one environment.

[I] Education systems will prioritize cultural literacy alongside traditional subjects. [II] Schools will teach world history from multiple perspectives rather than through a single cultural lens. [III] Students will routinely participate in virtual exchange programs, allowing them to form friendships with peers around the world without leaving their classrooms. [IV] Government policies will recognize that a harmonious multicultural society requires institutional support, with resources allocated to community centers where cultural exchange happens organically through shared meals, festivals, and collaborative art projects.

Economic systems will evolve to value diverse approaches to business and innovation. Companies will actively seek employees from varied backgrounds, recognizing that diverse teams create more innovative solutions. Traditional knowledge from indigenous communities will be respected and incorporated into sustainable development practices. The entertainment industry will produce content that authentically represents multiple cultures, moving beyond stereotypes to show the complexity within each tradition. Digital platforms will help preserve endangered languages and cultural practices through accessible archives and learning tools.

The greatest achievement of this harmonious world will be a new understanding of human identity. People will identify with multiple cultural traditions simultaneously without feeling conflicted about their loyalties. Holidays from various traditions will be celebrated collectively, creating new hybrid celebrations that honor multiple heritages. The concept of "us versus them" will gradually fade as people recognize shared values across different traditions. While challenges will remain, the dominant attitude will be one of curiosity rather than fear when encountering differences.

The phrase “vanishing into thin air” in paragraph 1 could be best replaced by _________.

Cho biết kết quả của đoạn chương trình dưới đây?

a = 10

while a < 11:

print(a)

\(\underset{x\to {{3}^{+}}}{\mathop{\lim }}\,\frac{4x-3}{x-3}\) có kết quả là

Loại carbohydrate nào sau đây thuộc nhóm đường đa?

Mục đích chính của Mĩ khi thực hiện các chính sách bành trướng, tăng cường ảnh hưởng của mình ở khu vực Mĩ Latinh vào cuối thế kỉ XIX – đầu thế kỉ XX là gì?

Điền số nguyên dương thích hợp vào chỗ trống.

Cho hình hộp \(ABCD\cdot {A}'{B}'{C}'{D}'\) có \(A{A}'=a\). Gọi \(M,N\) là các điểm thuộc các cạnh \(B{B}'\) và \(D{D}'\) sao cho \(BM=\) \(DN=\frac{a}{3}\). Mặt phẳng \(\left( AMN \right)\) chia khối hộp thành hai phần, gọi \({{V}_{1}}\) là thể tích khối đa diện chứa \({A}'\) và \({{V}_{2}}\) là thể tích phần còn lại. Tỷ số \(\frac{{{V}_{1}}}{{{V}_{2}}}\) bẳng (……).

Một trong những trách nhiệm của chủ thể sản xuất là

Choose A, B, C or D to make a complete dialogue for each question.

a. Well, we can’t deny this. I’ve started using paper bags exclusively. It’s my small way of helping the environment.

b. Do you ever consider using paper bags instead of plastic?

c. No, I find it easier to just reuse the plastic ones I already have at home.

d. I agree, but aren’t plastic bags still more convenient for carrying heavier items?

e. Surely. But have you noticed how plastic bags pile up and become a problem?

f. I haven’t really thought about it, but maybe it’s time to switch to paper.

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 three methods are used by cultural ambassadors to achieve their goals?

Văn bản Chuyện chức phán sự đền Tản Viên của tác giả nào?

Xác định thao tác lập luận chính trong văn bản sau:

“Nguyên tố cơ bản của sinh mệnh là thời gian. Thời gian là một chuỗi con số khô khan đơn điệu nhưng lại thần kì. Muốn đem chuỗi số này đến một môi trường tốt để phát huy tới cực điểm, đòi hỏi phải học được cách giải tổng hợp.

Từ phép cộng trừ nhân chia bậc tiểu học tới phép phân giải nhân thức bậc trung học, lại tới phép hàm số và vi tích phân của bậc đại học, khái niệm toán học đã được thăng cấp, tuổi tác của bản thân cũng tăng lên, sự lí giải cuộc đời cũng dần dần phức tạp. Hằng số và biến số của cuộc đời dù khó giải và nắm vững, nhưng con đường đời nói chung đều phải dựa vào việc vận dụng phép giải tổng hợp bốn phép tính cộng trừ nhân chia. ”

Nhà nước, xã hội phát triển văn học, nghệ thuật nhằm mục đích gì?

Each of the following sentences has one error (A, B, C or D). Find it and blacken your choice on your answer sheet.

The key to the success of the project is the dedication of the team, all of which worked tirelessly to meet the deadline.

Dãy nào sau đây không có giới hạn bằng 0?