Thực hiện phản ứng ester hóa giữa HOOC – COOH với hỗn hợp CH₃OH và C₂H₅OH thu được tối đa bao nhiêu ester hai chức?     

Cho \(\text{sin}\alpha =\frac{3}{5}\) với \({{90}^{\circ }}<\alpha <{{180}^{\circ }}\).

Ý nào sau đây là thể hiện vai trò của tín dụng?

Qua cuộc khai thác thuộc địa lần thứ nhất của thực dân Pháp, phương thức sản xuất nào được từng bước du nhập vào Việt Nam?

Tình trạng mức giá chung của nền kinh tế tăng lên trong một khoảng một thời gian xác định được gọi là gì?

Đặc điểm nào không đúng với khí hậu của phần lãnh thổ phía Nam nước ta (từ 16⁰B trở vào)?

Read the following advertisement about a new travel platform 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.

UNDERSTANDING GLOBALIZATION

Have you ever wondered how various countries become more interconnected? Globalization is the process (1) _____ for the exchange of ideas, goods, and services across the world. This phenomenon has (2) _____ many businesses to expand their markets beyond national borders. With the rise of technology and communication, companies can now communicate (3) _____ customers and partners globally. However, globalization also raises important questions about cultural identity and economic inequality. (4) _____ losing our local traditions in favour of a more homogenized culture? To explore these issues, join our upcoming seminar on globalization. Experts will discuss (5) _____ economies and societies. They will also provide insights into how we can navigate this complex landscape. Don't miss this opportunity (6) _____ your understanding of the world!

Read the 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 20 to 29.

We are living through a boom in greenwashing - the strategic use of comforting environmental claims to disguise business-as-usual pollution. Picture a chief executive whose company emits millions of tonnes of CO2 Genuine decarbonisation would require bruising boardroom discussions, huge capital outlays, and a complete redesign of the firm's model. Far easier is to hire a creative agency to plaster products with labels such as "carbon-neutral" or "net-zero," calming critics, investors, and even eco-conscious children while emissions continue unsolved.

This tactic meets consumers at every tum. Airline websites promise guilt-free flights, petrol pumps boast zero- - Impact fuel, and even supermarket bacon is marketed as net-zero. [1] Advertising trickery is ancient, yet today's greenwashing - the practice of deliberately covering ongoing pollution in eco-friendly language - has flourished only recently. The expression surfaced in the 1980s amid oil spills and growing climate science, but the real explosion has come as public anxiety over global heating and biodiversity loss has intensified. Faced with mounting scrutiny, many boards prefer glossy PR to structural reform. Such corporate sleight of hand has become so pervasive that regulators in Europe and the United States are scrambling to tighten rules on environmental claims, yet enforcement still lags behind marketing creativity. [II] The fossil-fuel sector exemplifies the issue. After decades covertly sowing doubt about climate science, oil and gas giants have grasped that direct denial is reputationally toxic. They have therefore swapped their denial tactics for a "green" paint-sprayer, trumpeting token investments in renewables while expanding drilling.

Why does this matter? Greenwashing and climate denial share a core objective: to postpone the emission cuts urgently required to avert climate breakdown. [III] Whereas denial invites opposition, greenwashing lulls the public into believing problems are already solved. Under this collective illusion, pressure on high-emitting firms evaporates and the radical decisions needed to transform energy, transport, and food systems are delayed indefinitely. [IV] Greenwashing thus acts as a soothing lullaby, leading society toward ecological ruin with a tune of comforting half- truths. Exposing this deception is essential If clichés are to be replaced by real, measurable emission cuts.

(Adapted from https:/www.greenpeace.org.uk)

Which of the following can be inferred from the passage?

Chọn câu mắc lỗi dùng từ không đúng nghĩa trong các câu sau đây.

Các phát biểu dưới đây đúng hay sai?

Một vật có khối lượng 200 g được treo vào một lò xo theo phương thẳng đứng thì chiều dài của lò xo là 20 cm. Biết khi chưa treo vật thì lò xo dài 18 cm. Lấy g = 10 m/s². Độ cứng của lò xo này là

Electron càng xa hạt nhân thì có năng lượng

Biểu hiện của đạo đức kinh doanh trong mối quan hệ giữa chủ thể sản xuất với khách hàng là gì?

Phương án nào sau đây là ưu điểm của cơ chế thị trường?