Cho các tập hợp:

A = {x ∈ ℤ | –3 < x < 3}; B = {x ∈ ℤ | 0 ≤ x ≤ 5}.

Xác định tập hợp M = (A \ B) ∩ (B \ A). Câu nào sau đây đúng?

Điền số nguyên dương thích hợp vào ô trống.

Trong không gian \(Oxyz\), cho mặt cầu

\(\left( S \right):{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-2x+4y-2mz+{{m}^{2}}-m=0\),

ở đó \(m\) là một tham số thực nhận giá trị dương. Biết mặt cầu \(\left( S \right)\) có diện tích bằng \(100\pi \). Giá trị của \(m\) bằng (……).

Nghiên cứu về quá trình tăng trưởng của một quần thể sinh vật trong điều kiện môi trường sống hạn chế cho thấy: ban đầu số lượng cá thể tăng trưởng chậm, sau đó nhanh và cuối cùng khi thời gian đủ dài, số lượng cá thể của quần thể đạt đến trạng thái cân bằng, khi đó số lượng cá thể sinh ra xấp xỉ bằng số lượng chết đi. Số lượng cá thể \(N\) trong quần thể theo thời gian \(t\) (ngày) được mô hình hóa và xấp xỉ theo hàm số: \(N(t)=\frac{16398{{e}^{0,5(t-9,19)}}}{0,12+{{e}^{0,5(t-9,19)}}}\). Khi quần thể sinh vật trên đạt trạng thái cân bằng, số cá thể của quần thể gần nhất với giá trị nào sau đây?

Điện thoại thông minh được kết nối internet bằng những cách nào?

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Alice: How about the park by the lake?

b. Ben: That sounds great! Where should we go?

c. Alice: Hey, do you want to go for a picnic this weekend?

Những hậu quả nguy hại đối với trẻ em khi tiếp xúc với màn hình máy tính, tivi, điện thoại quá lâu?

Chọn cặp từ/ cụm từ thích hợp nhất điền vào chỗ trống.

Người chủ có thể quan sát những biểu hiện _____ của thú nuôi nhưng đa số mọi người không ai biết những âm thanh đùng đoàng do bắn pháo hoa tác động thế nào đến động vật _____.

Kim loại nào sau đây không được gọi là kim loại kiềm?

Các bậc cấu trúc nào của protein bị thay đổi khi liên kết hydrogen bị phá huỷ?

Việc làm nào sau đây không phải là thực hiện nghĩa vụ bảo vệ Tổ quốc của công dân?

Đâu là ý đúng: Nội thương phát triển đóng vai trò gì ?

Nguyễn Tuân mất ngày 28/07/1987 tại đâu?

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.

Where in paragraph 2 does the following sentence best fit?

Researchers have developed treatments for previously incurable diseases, extended lifespans, and improved quality of life.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer.

Why are we always pointing to Instagram as the cause of mental illness in our teenagers? It’s frustrating that abusive relationships, and the trauma they cause, are rarely mentioned in discussions about the prevalence of mental health problems in young people. Research by Women’s Aid and Cosmopolitan has found that a third of teenage girls have been in an abusive relationship. And, if that isn’t shocking enough, when the remaining two-thirds were asked further questions, it emerged that 64% of them had, in fact, experienced abusive behaviour – they just didn’t realise it was abuse.

Domestic abuse is normally associated with women cowering on the floor, as a violent husband waits to strike, or mothers covering up their black eyes with concealer before the school run. On the same day that the domestic abuse bill received its second reading in parliament, Age UK called for action to tackle domestic abuse of over-60s, whose needs it says are often overlooked by the law, policy and practice. The needs of teenagers in the heady throes of first love who are in emotionally abusive relationships also need to be recognised.

Common themes of such relationships include (though are not limited to) excessive jealousy, repeated criticism and sexual coercion. If your boyfriend or girlfriend is checking your phone, constantly asking to know your whereabouts, getting upset when you spend time away, turning up unannounced to surprise you, these are all examples of coercive control. If they never apologise in an argument and make everything your fault, tell you what you can and can’t wear, undermine you and/or publicly humiliate you under the guise of a “joke”, these again are common instances of controlling behaviour. Ditto, if they have a Jekyll/Hyde personality, make you feel like you are walking on eggshells even when things are seemingly going well, and threaten to hurt themselves if you leave. When it comes to sexual coercion and rape, examples include making you feel pressured to perform sexual acts you’re uncomfortable with, such as sending nude photos, having sex before you’re ready, being pressured to re-enact extreme sex from porn films or being told you don’t love them if you say no.

Often the victim in an abusive relationship can never quite put their finger on one thing, but the overwhelming feeling is of a general unease, feeling unsafe, defective, wrong, scared and as if you are going crazy. It’s your “yourselfness” that’s being consistently undermined, controlled and attacked by the person who claims to love you.

What can be inferred from the second paragraph?

Phát biểu nào sau đây là đúng?

Đâu không phải nhược điểm của nhà kính đơn giản?

Kí hiệu $X$ là tập hợp các cầu thủ $x$ trong đội bóng rổ, $P(x)$ là mệnh đề chứa biến: "$x$ cao trên 180 cm".

Mệnh đề "$\forall x \in X$ , $P(x)$" khẳng định rằng

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

When parents name their children, they often take into consideration their own preferences, family traditions, or beliefs. In many European cultures, parents typically select names based on family connections, often honoring grandparents or ancestors. For instance, in Italy, children are commonly named after their grandparents, starting with the father's parents and then the mother's. Similarly, in Eastern Europe, children may be named after their deceased relatives to protect them from harm.

In some Asian countries, the naming process may involve the child's grandfather or a fortune-teller, who chooses a name believed to shape the child's character. Names might be inspired by elements like fire, water, earth, wood, or metal, or they may convey qualities such as beauty, strength, or kindness.

African cultures also have unique naming traditions, such as in Ghana's Akan culture, where a child's name is determined by the day of their birth. Each day has specific names for boys and girls, reflecting characteristics associated with that day. For example, a boy born on Friday might be named Kofi, symbolizing a "wanderer" or "explorer" while a girl born on the same day could be named Afua, also representing a traveler.

No matter where a name originates, it holds significant meaning and reflects the child's cultural heritage. Whether chosen out of preference or dictated by tradition, a child's name is a cherished and respected gift.

It can be inferred from the passage that names in China would relate to______.

Read the following passage about Renewable energy sources 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.

          [I] Renewable energy sources, such as solar, wind, and hydroelectric power, have gained global popularity as a sustainable alternative to fossil fuels. [II] Unlike coal and oil, renewable energy generates electricity without releasing harmful emissions, making it a cleaner option for the environment (Jacobson et al., 2017). [III] However, despite the advantages of renewable energy, there are still notable challenges that need to be addressed for it to fully replace traditional energy sources (Ell Abban et al., 2014). [IV]

          One major advantage of renewable energy is its sustainability. Renewable resources, unlike fossil fuels, are naturally replenished and do not deplete over time. For instance, solar power harnesses energy from sunlight, which is virtually endless. In addition, renewable energy contributes to reducing greenhouse gas emissions, which helps combat climate change. Many countries are increasingly investing in renewable technologies to decrease their carbon footprint and meet international climate goals.

          However, renewable energy has certain limitations. One significant issue is its intermittent nature; for example, solar and wind power depend on weather conditions, making it difficult to generate a consistent power supply. This variability can disrupt the energy grid, which relies on a steady supply of electricity to meet demand. Another challenge is the high initial cost of setting up renewable energy facilities. Although prices have decreased in recent years, installing solar panels or wind turbines still requires substantial upfront investment (IRENA, 2019).

          Despite these challenges, advancements in technology are gradually making renewable energy more efficient and accessible. Improved energy storage systems, such as batteries, allow excess power generated during favourable conditions to be stored and used later, ensuring a more reliable energy supply. As technology and infrastructure improve, renewable energy may eventually.

Which of the following best summarizes the passage?

Vì sao vi khuẩn sinh trưởng nhanh với tốc độ lớn nhất và không đổi trong pha lũy thừa ở nuôi cấy không liên tục?