Sự kiện nào mở đầu cho cách mạng tư sản Pháp 1789?

“Giúp con người hiểu được các quy luật phát triển của xã hội, rút ra những bài học kinh nghiệm cho cuộc sống hiện tại” là chức năng nào sau đây của Sử học?

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

They are having her house  painted by a construction company.

Một cửa hàng bán hai loại thức uống, trong đó 1 ly thức uống loại A có giá 15 000 đồng, 1 ly thức uống loại B có giá 20 000 đồng. Muốn có lãi theo dự tính thì mỗi ngày cửa hàng phải bán được ít nhất 2 triệu đồng tiền hàng. Gọi x, y lần lượt là số ly thức uống loại A và loại B bán được trong một ngày.

Chiến tranh Trịnh - Nguyễn diễn ra từ

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Hãy cho biết: Thành phần hóa học làm cho màng sinh chất có tính bền cơ học là gì?

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 paraphrases the underlined sentence in paragraph 4?

Chọn ý đúng: Lông mao và roi là?

Yếu tố nào không thuộc về ngoại lực?

Phát biểu nào sau đây không đúng với ngoại thương?

Cho hàm số bậc bốn $y=f\left(x\right)$ có đồ thị như hình vẽ. Số điểm cực trị của hàm số $g\left(x\right)=f(x^3-3x^2)$ là?

Nhận định nào dưới đây thể hiện chế độ làm việc theo hội nghị và quyết định theo đa số của Quốc hội?

Một nhân viên spa muốn pha nước tắm cho các bé, nhân viên này mở sẵn 50 lít nước ở \(20^{\circ} \mathrm{C}\). Biết lưu lượng của mỗi vòi là \(0,25 \mathrm{l} / \mathrm{s}\). Hệ thống massage được mở liên tục trong quá trình bơm nước vào bể để tạo dòng nước, khuấy đều để nhiệt độ nước tăng đều. Bỏ qua sự truyền nhiệt với bể chứa và môi trường. Xem khối lượng riêng của nước nóng và lạnh đều bằng \(997 \mathrm{~kg} / \mathrm{m}^{3}\).

Để thu được nước có nhiệt độ \(40^{\circ} \mathrm{C}\) thì nhân viên cần mở hai vòi chảy liên tục trong bao nhiêu giây?

Thông tin của thị trường quan trọng như thế nào đối với người bán?

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 following questions from 31 to 40.

Biting into a ripe, juicy fruit brings a smile to many people’s faces. But eating that same fruit a week before it is ripe probably wouldn’t be as enjoyable! Unripe fruits are often hard and bitter, but that serves a purpose. The hard exterior of an unripe fruit protects the developing seed inside. After a seed fully develops inside the fruit, the fruit changes color, softens, and gets sweeter to become more attractive to animals and humans. These organisms eat the fruit and spread its seeds, ensuring the plant’s survival and regrowth.

But how does a fruit ripen? The ripening process involves many complex chemical reactions. When a fruit ripens, it goes through a chemical change. A chemical change happens when bonds within molecules break, and the atoms that once formed them regroup into new molecules. Chemical changes are irreversible. Once a fruit ripens, it cannot become unripe again.

One molecule responsible for this chemical change is ethylene. Ethylene (C2H4) is a colorless gas made up of carbon and hydrogen atoms. (I). It is a naturally occurring molecule in the atmosphere. (II). It is also an important plant hormone. (III). Plants release ethylene through the growing tips of roots, flowers, and ripening fruit. (IV). Although ethylene serves other purposes in plants, one of its main purposes is to trigger the chemical reactions that cause fruits to ripen. As the fruit matures, oxygen in the air helps stimulate the production of ethylene. This ethylene production is a signal that begins fruit ripening. For that reason, unripe fruits have low levels of ethylene, while ripe fruits have higher levels of ethylene. Most fruits produce ethylene and respond to ethylene in the atmosphere.

Although fruits require ethylene to ripen, different types of fruits respond to this molecule in two distinct ways: non-climacteric fruits and climacteric fruits. Non-climacteric fruits do not ripen after harvesting. They produce very little ethylene of their own. Climacteric fruits, on the other hand, continue to ripen after they are picked. These fruits produce a large amount of ethylene. Climacteric fruits can also speed up the ripening process of other fruits nearby since they release high levels of ethylene into the air.  

Which of the following best paraphrases the underlined sentence: The ripening process involves many complex chemical reactions.

Số lượng hàng hóa và dịch vụ mà nhà cung cấp sẵn sàng đáp ứng cho nhu cầu thị trường với mức giá được xác định trong khoảng thời gian nhất định được gọi là gì?

Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each the numbered blanks from 31 to 35.

“One month on since the devastating earthquake hit Türkiye and Syria, the scale of the humanitarian response has yet to meet the enormous needs of displaced Syrian families and children (31)_____have suffered from compounded crises for almost 12 years now,” said Johan Mooij, director of World Vision’s Syria crisis response. “It is crucial that (32)_____ access channels to northwest Syria remain open, and that aid deliveries are scaled up through earmarked funding for the emergency response. Only this will ensure that children’s mental health needs are covered, and their trauma addressed.”

Snow and bitter winter weather have placed children at great risk of hypothermia (33)_____ they struggle to survive in sub-zero temperatures. Many survivors have had to sleep in cars, outside, or in makeshift shelters. Doctors (34)_____ that children are also at risk of exposure to waterborne diseases such as cholera or Hepatitis A due to the damage to shelters and water infrastructure.

These children are now even more vulnerable to family separation, exploitation, and abuse. As buildings are deemed unsafe, they also are unable to return to school.

“In northern Syria, in particular, the threats to children from abuse were already extreme. The soaring poverty, within a warzone, now devastated by earthquakes, has created an unimaginable number of challenges, and suffering for children,” says Johan, director of the Syria crisis response in Amman, Jordan. “This earthquake has created the perfect environment for a health crisis -fueled by reduced healthcare capacity and disease (35)_____.”

Loại máy giữ vai trò quan trọng, có thể áp dụng rộng rãi trong các lĩnh vực sản xuất ở Anh thời kì cách mạng công nghiệp là

Hai điện tích q₁ = 2.10^-6 C và q₂ = -8.10^-6 C lần lượt đặt tại hai điểm A và B với AB = 10 (cm). Xác định điểm M trên đường AB mà tại đó \({\overrightarrow E _2} = 4{\overrightarrow E _1}\)

Ý nào dưới đây không phải nhược điểm của cơ chế thị trường?