Cho hàm số \({\rm{f}}({\rm{x}})\) liên tục trên \(\mathbb{R}\) và có đồ thị như hình bên. Giá trị lớn nhất của \({\rm{f}}({\rm{x}})\) trên đoạn [1;2] bằng

Read the following passage about urban shift and mark the letter A, B, C, D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

[I] Sperm whales are fascinating creatures. [II] They possess the biggest brain of any species, six times larger than a human’s, which scientists believe may have evolved to support intelligent, rational behavior. [III] They’re also highly social and capable of making decisions as a group. [IV] But there’s also a lot we don’t know about them, including what they may be saying to one another when communicating with a system of short clicks, known as codas.

Now, new research published in Nature Communications today suggests that sperm whales’ communication is actually much more expressive and complicated than was previously thought. A team of researchers led by Pratyusha Sharma at MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) working with Project CETI, a nonprofit focused on using AI to understand whales, used statistical models to analyze whale codas and managed to identify a structure to their language that’s similar to features of human language. Their findings represent a tool future researchers could use to decipher not just the structure but the actual meaning of whale sounds.

For the study, the researchers examined recordings of 8,719 codas from around 60 whales collected by the Dominica Sperm Whale Project between 2005 and 2018, using a mix of AI algorithms for pattern recognition and classification. The AI then turned the clicks within the coda data into a new kind of data visualization called an exchange plot, revealing that some codas featured extra clicks. These extra clicks, combined with variations in the duration of their calls, appeared in interactions between multiple whales, which they say suggests that codas can carry more information and possess a more complicated internal structure than we had previously believed.

The team’s next step is to build language models of whale calls and to examine how those calls relate to different behaviors. They also plan to work on a more universal system that could be used across species, says Sharma. Taking a communication system we know nothing about, working out how it encodes and transmits information, and slowly beginning to understand what’s being communicated could have many purposes beyond whales. “I think we’re just starting to understand some of these things,” she says. “We’re very much at the beginning, but we are slowly making our way through.”

Which of the following is TRUE about the study discussed in this passage?

Read the following passage about Reducing Electronic Waste 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 18 to 22.

In today's hyper-connected world, our constant need for the newest electronic devices has led to a growing environmental crisis. Electronic waste, or e-waste, is one of the fastest-growing waste streams globally, with millions of tons discarded annually. A digital detox, (18)_________, can be an effective environmental practice that helps address this issue.

(19)_________, the current e-waste crisis might have been avoided. The devices that we carelessly discard often contain valuable materials that could be recycled and harmful components that contaminate soil and water. Many consumers replace functioning smartphones and laptops simply because newer models are available, not realizing the environmental impact of their decisions. The manufacturing process of new electronics requires significant resources and energy; (20)_________.

Practicing digital detox not only improves mental health but also decreases the demand for new products. (21)_________; however, if consumer demand decreases, production might slow down as well. Individuals who commit to using their devices for longer periods contribute significantly to waste reduction, and they often discover that older models fulfill their needs perfectly well.

The electronic waste problem requires both individual action and systemic change. We can create a world embracing sustainable principles, (22)_________, through our participation in digital detox practices and mindful consumption.

Đọc đoạn tư liệu sau đây:

“Điều quan trọng là chủ nghĩa tư bản không thể tồn tại và phát triển được nếu không thường xuyên mở rộng phạm vi thống trị của nó, không khai phá những xứ sở mới và không lôi cuốn các xứ sở không phải tư bản chủ nghĩa vào cơn lốc kinh tế thế giới”.

(Lê-nin: Toàn tập, Tập 3, NXB Chính trị quốc gia, 2005, tr.751)

Ngành nghề nào dưới đây không thuộc nhóm ngành sinh học cơ bản?

Vốn, thị trường, khoa học và công nghệ, kinh nghiệm quản lí từ các nước khác ảnh hưởng tới sự phát triển kinh tế - xã hội của một nước, được gọi là gì?

Đặc điểm nào phía dưới không phải là ưu điểm của phần mềm mã nguồn mở?

Nguyễn Dữ về ở ẩn tại đâu?

Nhà sinh vật học nằm trong nhóm ngành nào?

Đâu là đặc điểm của lớp Manti dưới?

Di sản văn hoá bao gồm những yếu tố nào sau đây?

Read the following passage about The Elderly in Multicultural Societies: Challenges and Opportunities 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 multicultural societies, elderly individuals face unique challenges and important opportunities. As communities diversify rapidly, traditional support systems are constantly evolving. Seniors often navigate unfamiliar cultural environments while facing significant language barriers that lead to social isolation. These persistent obstacles frequently prevent full access to essential healthcare services or meaningful community participation. Fortunately, innovative local organizations address these critical issues by offering comprehensive translation services and culturally sensitive care options.

Technology presents both remarkable benefits and considerable difficulties for elderly individuals from various cultural backgrounds. Digital tools effectively connect seniors with distant family members globally, yet many older adults struggle substantially with these new communication methods. Recent research shows approximately 65% of elderly immigrants experience digital exclusion compared to native-born seniors. In response, numerous community centers have successfully established specialized technology workshops for older adults from diverse backgrounds, helping them maintain vital connections with overseas relatives and friends.

Cultural differences significantly impact elderly care approaches across communities. In collectivist cultures, elderly family members traditionally live with their children, while Western societies typically emphasize personal independence. This fundamental divergence creates tension when immigrant families attempt to adapt to new societal norms. However, vibrant multicultural environments provide valuable opportunities for exchanging diverse perspectives on aging. Many communities benefit tremendously from adopting hybrid approaches blending traditional cultural practices with modern care techniques, creating more comprehensive support systems.

Economic aspects of aging in multicultural contexts matter significantly for overall wellbeing. Elderly immigrants frequently face severe financial hardships due to limited retirement savings and persistent employment discrimination throughout their lives. Some progressive governments implement supportive policies addressing these vulnerable individuals' unique needs. Certain forward-thinking regions offer specialized employment programs for seniors with diverse cultural backgrounds, recognizing their valuable skills and extensive life experiences. Additionally, creative intergenerational initiatives connecting elderly immigrants with younger community members effectively foster mutual understanding and practical support, successfully transforming demographic challenges into meaningful community enrichment opportunities.

Which of the following is TRUE according to the passage?

Giới hạn dưới của vỏ địa lí ở lục địa là gì?

Cho hình chóp \(S.ABCD\), khi đó tổng số cạnh và số mặt của hình chóp là

Nguồn năng lượng chủ yếu được con người tiêu thụ để phục vụ đời sống xã hội, sản xuất công nghiệp trong thời đại ngày này là

Mệnh đề phủ định của mệnh đề "$\forall x \in \mathbb{R}: \, x^2>x$" là

Cho tứ diện ABCD có \(DA \bot \left( {ABC} \right)\), ABC là tam giác cân tại A. Gọi M là trung điểm của BC. Gọi G, K lần lượt là trọng tâm của tam giác ABC và DBC. Góc giữa hai đường thẳng GK và AB bằng?

Lỗi dùng từ không đúng nghĩa là trường hợp người dùng từ

Em hãy điền cụm từ thích hợp vào chỗ trống (….) trong khái niệm dưới đây: “………. là quyền của công dân được tự do phát biểu ý kiến, bày tỏ quan điểm của mình về tất cả các vấn đề chính trị, kinh tế, văn hoá, xã hội của đất nước dưới hình thức bằng lời nói, văn bản bản điện tử, hoặc dưới hình thức khác”.

Nhận xét nào sau đây là sai khi nói về sóng âm?