Cho thế điện cực chuẩn của các cặp oxi hóa – khử sau: ${\text{E}}_{{\text{MnO}}_4^{-}/{\text{Mn}}^{2+}}^{\text{o}}=+1,51\text{ V}$ và ${\text{E}}_{{\text{Fe}}^{\text{3+}}{\text{/Fe}}^{2+}}^{\text{o}}=+0,77\text{ V}$

Phát biểu nào sau đây sai?

Nhận xét nào sau đây là đúng về cuộc đấu tranh ngoại giao trong quá trình kết thúc cuộc kháng chiến chống Pháp (1945-1954) ở Việt Nam?

Read the following passage about global warming 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.

ADMIRING A U.S. PRESIDENT

One of the most influential figures in American history is Franklin D. Roosevelt, who served as the 32nd President of the United States. (18) ______. He is known for his leadership during the Great Depression and World War II. His New Deal programs aimed to provide relief for the unemployed and stimulate economic recovery. Roosevelt’s ability to communicate with the American people through his fireside chats (19) ______.

His policies helped reshape the role of the federal government in the economy, leading to lasting changes that continue to impact the nation today. (20) ______. Roosevelt's vision for a more inclusive America resonated with many citizens, and his commitment to social welfare programs has left a significant legacy.

Additionally, his determination and resilience during his battle with polio (21) ______. This experience shaped his empathy for the struggles of others and influenced his approach to governance. His leadership style is often admired for its ability to unite the country in times of crisis. (22) ______. His enduring impact is evident in the policies and institutions that were established during his presidency. 

Với Access khi nhập dữ liệu cho trường “Ghi chú” trong CSDL (dữ liệu kiểu văn bản) mà nhiều hơn 255 kí tự thì ta cần phải định nghĩa trường đó theo kiểu nào?

The word career in line 4 is closest in meaning to ___

Nếu tam giác ABC có \(\frac{{\sin B}}{{\sin C}} = 2\cos A\) thì?

Cảm xúc mùa thu được sáng tác năm bao nhiêu?

Read the following passage about Edible Landscapes for Community Resilience 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.

Urban food forests are becoming popular in many cities around the world. These special gardens (18)_________. Food forests which contain fruit trees, berry bushes, and edible plants help people learn about growing food and nature. These community gardens provide fresh food; (19)_________. The food is free for everyone to harvest; this system builds community connections and food security. Many cities now support these projects, recognizing their benefits and (20)_________. Unlike traditional parks, food forests need less water and maintenance. They grow many different plants together, which helps protect against pests and diseases naturally. Children love visiting these spaces to pick berries and learn about where food comes from.

Climate change makes growing local food more important than ever. When communities grow food together, (21)_________. Food forests can help reduce the urban heat island effect by providing shade and cooling the air. They also support important pollinators like bees and butterflies that help all plants grow better. Some food forests include community kitchens (22)_________. These spaces become centers for education about healthy eating and traditional cooking methods. Elderly community members often share their knowledge of plants and recipes with younger generations. This creates valuable connections between different age groups and cultures.

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. Although many items end up in the trash after we use them, some clever designers are creating things that can be fixed or recycled when they break.

b. When I bought my water bottle last year, I chose one that will last a long time because it is made from strong materials that don't harm nature.

c. Since more people care about the environment, which makes me hopeful, many shops now sell products that are designed to be part of the circular economy.

d. When companies make products that can be reused, they help our planet stay clean and healthy.

e. If we build phones that are easy to repair, which saves us money, we won't need to buy new ones so often.

Khi thực hiện khảo sát dao động của con lắc đơn, một học sinh đo được kết quả vào biểu diễn trên đồ thị hình vẽ. Tuy nhiên, do sơ suất nên lại không kí hiệu các đại lượng lên trên trục tọa độ. Hãy xác định các đại lượng trên trục Ox và Oy.

Đọc đoạn trích sau và trả lời câu hỏi:

Dốc lên khúc khuỷu, dốc thăm thẳm

Heo hút cồn mây súng ngửi trời

Ngàn thước lên cao, ngàn thước xuống

Nhà ai Pha Luông mưa xa khơi.

Anh bạn dãi dầu không bước nữa

Gục lên súng mũ bỏ quên đời!

(Tây Tiến, Quang Dũng)

Biện pháp nghệ thuật nhân hoá trong đoạn trích trên thể hiện nét riêng nào trong vẻ đẹp tâm hồn của người lính Tây Tiến?

Rửa xe, đánh bóng vỏ xe là công việc bảo dưỡng cơ bản nào?

Một vật dao động điều hòa có phương trình li độ: $x=A\cos\left(\omega t+\varphi\right)$. Gia tốc của vật biến đổi điều hoà theo phương trình