Trong không gian với hệ tọa độ $Oxyz$, mặt cầu $\left( S \right):{{\left( x+2 \right)}^{2}}+{{\left( y+3 \right)}^{2}}+{{\left( z-5 \right)}^{2}}=36$ có tọa độ tâm $I$ là

Xác định một từ/cụm từ SAI về mặt ngữ pháp/ hoặc ngữ nghĩa/logic/phong cách.

Trong vũ trụ, nếu chỉ riêng loài người biết mình có đời sống tinh thần cao vượt lên trên hết vạn vật; có lí trí phân biệt thị phi, thiện ác, quan niệm được tận thiện, tận mĩ để ngày ngày hướng về chỗ chí thiện ấy mà cố sức tiến lên.

Ta có thể biểu diễn các chữ Tiếng Việt để máy tính xử lý được không?

Ngành dịch vụ nào dưới đây được xác định trở thành ngành kinh tế mũi nhọn của nước ta trong thời gian gần đây?

Cho các dữ kiện sau:

1. Mở đầu vai trò cách mạng chống đế quốc và phong kiến ở Trung Quốc;

2. Phong trào Ngũ tứ lôi cuốn đông đảo các tầng lớp xã hội tham gia;

3. Đánh dấu bước chuyển của cách mạng.

Hãy sắp xếp các dữ kiện trên theo đúng lôgíc.

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 questions from 36 to 42.

In the distance, an enormous, menacing-looking tornado can be seen. Luckily, the area has been evacuated and there is no one to be seen. Then, out of the blue, a few kilometres away a van appears and races down the road straight towards the tornado. Both in their twenties, Joe Hammond and his wife Emma are heading for it. Their purpose is to monitor various characteristics of a tornado, such as its speed, direction, and temperature. The storm chasers are planning to plant themselves directly in the path of the tornado to amass as much information as they can.

Joe and Emma are dedicated storm chasers. They began to chase storms as university students, and in recent years they have been travelling vast distances around the USA in their efforts to locate tornadoes. Bizarre as it may sound, they are not the only people to do it. During the tornado season, hundreds of people cross Tornado Alley, an area between South Dakota and Texas. Their vehicles are almost unrecognisable, as they are concealed underneath an assortment of electronic equipment and contain all manner of communication devices.

When asked why people are so fascinated by tornadoes, Joe said some tornado chasers relish the challenge, while others might just love the exhilaration of being in a treacherous situation. Some experienced chasers have even turned their hobby into a business and set up travel agencies offering tourists trips which guarantee a ringside view of the twisters. It seems, however, that people like Joe and Emma also make a pivotal contribution to the study of tornadoes.

The fact is, although there are about a thousand tornadoes in the USA each year, meteorologists still do not fully comprehend why they happen. This is partly because the research done by radars in laboratories is not as efficacious as mobile equipment deployed directly at the scene. Thus, some research meteorologists even go storm chasing themselves. It seems that the thrill, combined with a desire to understand nature, is the reason why people like Joe and Emma chase tornadoes.

(Adapted from Venture into First for Schools)

The word they in paragraph 4 refers to _______ .

Cho các cân bằng hóa học sau:

(a) H₂ (g) + I₂ (g) ⟷ 2HI (g)

(b) 2NO₂(g) ⟷ N₂O₄ (g)

(c) N₂(g) + 3H₂(g) ⟷ 2NH₃(g)

(d) 2SO₂(g)+ O₂(g) ⟷ 2SO₃(g)

Ở nhiệt độ không đổi, khi thay đổi áp suất chung của mỗi hệ cân bằng, cân bằng hóa học nào không bị chuyển dịch?

Nhận định nào dưới đây không phải là biểu hiện của quá trình toàn cầu hóa kinh tế?

Nhận xét nào sau đây là đúng về hoạt động đối ngoại của Phan Bội Châu những năm 1911 - 1925?

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?

Cho hàm số $y=f(x)$ liên tục trên $\mathbb{R}$ và có bảng xét dấu của đạo hàm như hình vẽ.

Hàm số $y=f(x)$ có bao nhiêu điểm cực trị?

Cho hai biến cố $A,\, B$ với $P(B)=0,6 ;\,P(A| B)=0,7$ và $P(A| \bar B)=0,5$. Khi đó, $P(A)$ bằng

Điểm $O\left( 0;0 \right)$ thuộc miền nghiệm của hệ bất phương trình nào sau đây?

Choose A, B, C or D that has the CLOSEST meaning to the given pair of sentences in the question.

She battled cancer for several years. In the end, her perseverance led to remission and the regaining of her strength.

Đồ thị biểu diễn mối quan hệ giữa gia tốc và vận tốc là 

Cho cấp số nhân với số hạng đầu $u_1=1$ và công bội $q=-3$. Năm số hạng đầu của cấp số nhân đó là