Cơ thể động vật không lấy từ môi trường sống chất nào sau đây?

Những người có thu nhập cao trong doanh nghiệp phải trích một khoản tiền từ phần thu nhập để nộp vào ngân sách nhà nước là thực hiện loại thuế nào sau đây?

Giá trị của $a$ để diện tích $S$ của hình phẳng giới hạn bởi $(P): y=\dfrac{x^2-2x}{x-1}$, đường thẳng $d: y=x-1$ và $x=a$,

$x=2a$ ($a>1$) bằng $\ln3$ là

Read the following passage about Life in The Future 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 the near future, technology is expected to bring about significant changes to how we lead our lives. One of the most notable shifts will be the way we keep up with the rapid pace of technological advancements. With smart homes and autonomous vehicles, our daily routines will increasingly depend on sophisticated systems designed to make our lives easier. For example, smart assistants will look out for our needs, such as ordering groceries, adjusting room temperatures, or even scheduling doctor’s appointments.

Another major development will be in communication. Today, we already use video calls to stay in touch with friends and family across the globe, but the future promises even more immersive experiences. Virtual reality could allow us to hang out with people in virtual spaces, regardless of where they physically are. As a result, geographical barriers will become less relevant, creating a more connected and global society.

Healthcare is also likely to transform. Advances in artificial intelligence will enable doctors to look after patients more efficiently, diagnosing diseases earlier and prescribing personalized treatments. These changes may extend our lifespan and improve our quality of life. Additionally, breakthroughs in renewable energy will play a key role in sustaining our future. With green energy sources, such as solar and wind power, we can cut down on harmful emissions and move toward a more sustainable planet.

While these advancements sound exciting, they also bring challenges. As technology becomes more integrated into our lives, we must be careful to ensure privacy and security. We need to watch out for potential risks, like data breaches and the misuse of personal information. With thoughtful planning, however, the future holds great promise for improving the way we live, work, and interact with the world.

The word " notable " in paragraph 1 is OPPOSITE in meaning to:

Read the following passage about humanoid robots 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.

The average life expectancy in Vietnam is approximately 71 years for men and 76.4 years for women. This gender disparity is often attributed to differences in lifestyle and health-related behaviors. Women generally exhibit healthier habits, such as consuming less alcohol, smoking less frequently, maintaining a balanced diet, and paying greater attention to their physical well-being.  However, life expectancy is shaped by a variety of additional factors  . For instance, individuals residing in economically disadvantaged regions often face limited access to healthcare services, nutritious food, and opportunities for rest or physical activity , which can significantly reduce their lifespan. Educational attainment also plays a crucial role. Research indicates that individuals with higher education levels tend to live, on average, three years longer than those without a university degree. This is likely due to improved socio-economic conditions associated with higher education, such as better employment prospects and access to resources that promote health. Furthermore, benefiting from advances in medicine and medical technology people can lead a healthier and safer life, which results in enhanced life expectancy. Ultimately, lifestyle choices are critical determinants of longevity. It is crucial for individuals to adopt healthy habits, such as maintaining a nutritious diet that provides essential nutrients, and avoiding harmful behaviors like smoking, which brings about a wide range of both physical and mental changes in people’s health, leading to a longer expectancy.

Một vật dao động điều hòa dọc theo trục Ox với biên độ 20mm, tần số 2Hz. Tại thời điểm \(t = 0s\) vật đi qua vị trí có li độ 1cm theo chiều âm. Phương trình dao động của vật là:

Read the following passage 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.

Mountain Lions Amid Wildfires: A Struggle for Survival

Beth Pratt, the California director for the National Wildlife Federation, has spent her career protecting Los Angeles’ mountain lions. These top predators live in a rocky area surrounded by fancy houses and many roads. When wildfires destroy vast stretches of open land, the survival options for these animals become critically limited. “This is the LA area—these mountain lions can’t just move into the Kardashians’ backyard,” Pratt says, her voice filled with concern for the animals in such a difficult situation.

(I) The chaparral vegetation, covering about 10% of California, is one of the world’s most flammable ecosystems. (II) In Los Angeles, suburban sprawl intrudes on these areas, blocking wildlife escape routes. (III)Fires strip the land of food and shelter, transforming vibrant ecosystems into barren landscapes. (IV) Pratt highlights the urgency of the situation, explaining how areas that once supported life are now “taken out of commission,” leaving many species to starve or struggle for survival.

The consequences extend beyond wildlife. Wildfires have caused devastating human losses, with 88,000 people evacuated and a rising death toll of 25. Meanwhile, the non-human world suffers equally, particularly endangered species with limited ranges. Red-legged frogs, reintroduced into Santa Monica streams in 2014, are among the most affected, with their habitats repeatedly destroyed. The Woolsey Fire of 2018 was followed by mudslides that wiped out much of the region's delicate ecosystem, and scientists fear similar outcomes this time. California newts, reptiles, and snakes are also at high risk, while mammals and birds, although more likely to escape, face challenges in finding food and shelter as the ecosystem bounces back.

Despite the devastation, hope remains. The chaparral is a fire-adapted ecosystem, and life often endures beneath the soil. Seeds can survive and germinate quickly, with grasses sprouting weeks after the first rain. Shrubs may take up to a decade to recover, depending on rainfall. Prof. Stefan Doerr, an expert on wildfires, emphasizes the resilience of this landscape, noting its evolutionary adaptation to high-intensity fires occurring every 30 to 100 years. While the aftermath looks bleak, these fires play a role in maintaining biodiversity, offering a glimmer of hope for recovery.

The word “their” in Paragraph 3 refers to:

Cho bảng số liệu:

DIỆN TÍCH GIEO TRỒNG MỘT SỐ LOẠI CÂY NƯỚC TA NĂM 2021

(Đơn vị: nghìn ha)

(Nguồn: Tổng cục Thống kê)

Căn cứ vào bảng số liệu trên, vào năm 2021, diện tích gieo trồng cây lương thực nước ta chiếm tỉ trọng khoảng bao nhiêu phần trăm? (Làm tròn kết quả đến số thập phân thứ nhất của %)

Read thefollowing passage and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanksfrom 18 to 22. 

Sustainable travelling, (18) ________, is becoming increasingly popular as people become more aware of the environmental impact of traditional travel. Travelling in a sustainable way means reducing carbon footprints and respecting local cultures and ecosystems. For instance, (19) _______ by choosing eco-friendly accommodations, using public transportation, or supporting local businesses that prioritize sustainability. However, there are also challenges, such as the tendency for some to prioritize convenience over environmental concerns, which can lead to unsustainable practices.

While sustainable travelling is often seen as a positive trend, (20) ________. Choosing to fly less frequently, for example, can significantly reduce carbon emissions, but it requires travelers to be mindful of alternative options. Furthermore, (21) ________, ensuring that they contribute positively to the local economy and culture. Travel companies also play an essential role in promoting sustainable tourism by offering packages that prioritize environmental conservation and social responsibility.

In conclusion, sustainable travelling is not just a passing trend but a long-term shift towards more responsible tourism. (22) _______, individuals, communities, and governments can together create an environment where sustainable travel becomes the norm rather than the exception. By doing so, we can ensure that future generations are able to enjoy the beauty of the world without compromising its preservation.

Find the word which has a different sound in the part underlined.

Việt Nam bắt đầu thực hiện công cuộc đổi mới đất nước (12-1986) trong tình hình quốc tế đang có chuyển biến nào sau đây?

Mức độ thay đổi tần số allele của các gene trong quần thể phụ thuộc vào tỉ lệ nhập cư và khả năng tham gia sinh sản thành công của những cá thể nhập cư là đặc điểm của nhân tố tiến hoá nào sau đây?

Tính diện tích hình phẳng được giới hạn bởi các đường \(y={{x}^{2}}+x-1\),\(y={{x}^{4}}+x-1,x=-1,x=1\)  (làm tròn đến hai chữ số thập phân)

Xác định điều nào đúng với các thể Barr ở người?

Read the following passage about studying abroad 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.

Successful students often do the followings while studying. First, they have an overview before reading. Next, they look for important information and pay greater attention to it (which often needs jumping forward or backward to process information). They also relate important points to one another. Also, they activate and use their prior knowledge. When they realize that their understanding is not good, they do not wait to change strategies. Last, they can monitor understanding and take action to correct or “fix up” mistakes in comprehension.

Conversely, students with low academic achievement often demonstrate ineffective study skills. [I] They tend to assume a passive role in learning and rely on others (e.g., teachers, parents) to monitor their studying. [II] For example, low-achieving students often do not monitor their understanding of content; they may not be aware of the purpose of studying; and they show little evidence of looking back or employing “fix-up” strategies to fix understanding problems. [III] Students who struggle with learning new information seem to be unaware that they must extend effort beyond simply reading the content to understand and remember it. [IV] 

Children with learning disabilities do not plan and judge the quality of their studying. Their studying may be disorganized. Students with learning problems face challenges with personal organization as well. They often have difficulty keeping track of materials and assignments, following directions, and completing work on time. Unlike good studiers who employ a variety of study skills in a flexible yet purposeful manner, low-achieving students use a restricted range of study skills. They cannot explain why good study strategies are important for learning; and they tend to use the same, often ineffective study approach for all learning tasks, ignoring task content, structure or difficulty.

The phrase fix-up in paragraph 2 could be best replaced by_________. . 

Khi bị đứt tay, sẽ có những hệ nào tham gia để bảo vệ cơ thể?