Một dây đàn dài 0,6 m hai đầu cố định dao động với một bụng độc nhất (ở giữa dây). Nếu dây dao động với ba bụng thì bước sóng có giá trị là

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

As was ___________ predicted, the superstar couple from a famous TV show has broken up. They give viewers an impression that they are not compatible with each other.

Dãy nào sau đây gồm các đồng vị của cùng một nguyên tố hoá học?

Cho x=00111, y=10011

Kết quả của phép x + y là:

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!

“Trong quá trình tìm kiếm sự hợp tác giữa các nước Đông Nam Á đã xuất hiện những tổ chức khu vực và kí kết các hiệp ước giữa các nước trong khu vực. Tháng 1-1959, Hiệp ước hữu nghị và kinh tế Đông Nam Á (SAFET) bao gồm Ma-lai-xi-a và Phi-lip-pin ra đời.

Tháng 7-1961, Hội Đông Nam Á (ASA) gồm Ma-lai-xi-a, Phi-lip-pin và Thái Lan được thành lập. Tháng 8-1963, một tổ chức gồm Ma-lai-xi-a, Phi-lip-pin, In-đô-nê-xi-a (MAPHILINDO) được thành lập. Tuy nhiên, những tổ chức trên đây không tồn tại được lâu do sự bất đồng giữa các nước về vấn đề lãnh thổ và chủ quyền”.

 (Nguyễn Anh Thái (Chủ biên), Lịch sử thế giới hiện đại, NXB Giáo dục, Hà Nội, 1998, tr.358)

Tổ chức MAPHILINDO có những quốc gia nào?

Đến đầu thế kỉ XVI, quốc gia có nền kinh tế phát triển nhất châu Âu là

Read the following passage 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 origins of popular foods often reveal surprising historical insights. (18)______. While many assume that curry was introduced to England through interactions with India in the 1600s, historical evidence suggests otherwise. Wealthy English families,(19)______, were consuming dishes prepared with curry spices as early as the time of King Richard I. Notably, the term “curry” appears in an English cookbook published in 1377, long before British ships traveled to India. This early mention highlights how food traditions can transcend borders and evolve over centuries, influenced by trade and exploration.

Similarly, pizza, a dish frequently associated with Italian cuisine, (20)______. While modern pizza originated in Naples, records indicate that in the 500s, Persians consumed round, flat bread topped with cheese. This precursor to the pizza we know today reflects the global interconnectedness of culinary traditions, where simple yet innovative recipes emerge in different cultures independently. (21)______.

The history of hamburgers also deviates from common perceptions. While widely regarded as an American culinary creation, (22)_______. According to historical accounts, Otto Kuasw created the first hamburger in 1891, and by 1895, German sailors had introduced the dish to the United States. This journey from Germany to the U.S. demonstrates how cultural exchanges shape iconic dishes.

Understanding the origins of these foods enhances appreciation of their cultural and historical significance. Regardless of their provenance, their enduring appeal lies in their taste, adaptability, and ability to bring people together across time and space.

Read the passage carefully. Choose an option (A, B, C or D) that best answers each question from 16 to 22.

1. Like many emergency responders, Nicholas Groom is used to stress at work.  On the one hand, the stress can be helpful. “I find that when attending a serious incident, it helps me to maintain focus on the situation,” Nicholas Groom said. On the other hand, the work can be highly pressurized. “Too much stress can impair your ability to make decisions,” he adds. And Groom is not alone in his complicated relationship with stress.

2. Many people believe that there should be a balanced amount of stress. In other words, not too much stress so you’re not overwhelmed but not too little stress so you don’t feel unmotivated. After all, some anxiety is motivating; think of the adrenaline before a deadline or the excitement before a competition.  Sports fans sometimes even talk about a “gene” in some athletes who seem to play best in the decisive final moments of a match. Furthermore, many psychologists claim that performance in many situations increases with stress up to a point. Of course, any stress can cause harm when it’s prolonged. To take just one example, a long-term high heart rate is linked to cardiovascular diseases. And additional stressors, such as financial pressures or psychiatric issues, clearly affect how beneficially someone can respond to stress.  

3. So is there a way to harness stress to your advantage while being mindful of its detrimental long-term effects? One key factor is to avoid, whenever possible, the point when stress leads to mental and physical collapse. Crystal Wernicke, 30, has always used stress as a motivator. But juggling between parenting, a full-time job, a voluntary role and financial troubles at the same time became too much and eventually led to a two-month period of illness. Another factor is the presence of control. For those who feel powerless over their situation, stress is unlikely to be beneficial. But with some autonomy over stressful tasks, we are better able to convert that pressure into higher performance.

4. When it comes to stress and how it affects your performance, it’s helpful to recognize the variations in personality, type of stress and task that affect the level of pressure you are under, as well as understanding tools you can use to control and harness that stress. Ultimately, it’s not helpful to take a one-sided view, either demonizing or glorifying stress. As James C Quick, a management professor at the University of Texas, sums up: “Stress can be the kiss of death as well as the spice of life.”

What is one way to harness stress to your advantage, according to the third paragraph?

Phương trình \(\text{cot}x=\text{cot}\alpha \) có nghiệm là

Cuộc khởi nghĩa Xpac–ta-cut diễn ra vào năm nào?

Biện pháp nào dưới đây đảm bảo cho hiệu quả điều trị bệnh cầu trùng cho gia cầm tốt hơn?

Một vật có khối lượng m trượt trên mặt phẳng ngang. Biết hệ số ma sát trượt giữa vật và mặt phẳng là μ, gia tốc trọng trường là g. Biểu thức xác định lực ma sát trượt là

Chủ nghĩa đế quốc là hệ quả trực tiếp của sự phát triển và mở rộng của chủ nghĩa tư bản nhằm

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.

UNBREAKABLE SPIRIT: AN EVENING WITH NICK VUJICIC

We are thrilled to announce that (1) ______ Nick Vujicic will be visiting our community for an exclusive seminar (2) ______ to inspire, empower, and create lasting change. This once-in-a-lifetime event will offer attendees the opportunity to hear Nick's powerful story of resilience, faith, and perseverance firsthand. Born without limbs, Nick has transformed his circumstances into a source of (3) ______. He has spoken to millions of people around the globe, spreading messages of hope, and the courage to turn obstacles (4) ______ opportunities. Nick’s dynamic and engaging approach has (5) ______ a lasting impact on audiences of all ages and backgrounds. Participants will gain practical strategies for overcoming challenges, achieving personal and professional goals. This event is organized (6) ______ personal growth, motivate change, and cultivate unity. Join us for an unforgettable experience. Space is limited, so be sure to reserve your spot today!

Ở động vật, bộ phận hoặc cơ quan thực hiện trao đổi khí O₂ và CO₂ với môi trường gọi là