Bốn phát minh lớn về kĩ thuật của người Trung Hoa thời kì cổ - trung đại là
A. bản đồ, la bàn, thuốc nổ và kĩ thuật làm giấy.
B. kĩ thuật làm giấy, cánh buồm, bánh xe và la bàn.
C. kĩ thuật đóng tàu, giấy, khuôn in và thuốc súng.
D. kĩ thuật làm giấy, kĩ thuật in, la bàn và thuốc súng.
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Trong dãy kí hiệu các nguyên tử sau: \(_7^{14}A;\,\,_9^{19}B;\,\,_{26}^{56}E;\,\,_{27}^{56}F;\,\,_8^{17}G;\,\,_{10}^{20}H;\,\,\,_{11}^{23}I;\,\,_{10}^{22}K\). Các kí hiệu nào cùng chỉ cùng 1 nguyên tố hoá học?
Read the following passage about the impact of tweeting on everybody 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
EVERYBODY’S TWEETING
Twitter (18) ________________ for a podcasting website, but then people realized that it offered them the power to connect with millions of people instantly. Suddenly, everyone had a voice, as long as it wasn’t longer than 140 characters. But what are we using it for, and just how is Twitter changing the way we do things?
Perhaps the greatest impact Twitter has had is on breaking news. Before Twitter, (19) _____________ before finally broadcasting it on the radio or TV. These days, anyone who happens to be in the right place at the right time with a Twitter account can post news the second it happens. For example, Janis Krums posted a photo and a tweet when he witnessed a US flight making an emergency landing in the Hudson River. He must never have imagined that he would break the story to the world.
Following Pop Idols
Young people have always loved to follow their pop idols, and Twitter has made it a whole lot easier. Before the Internet, teenagers used to join the fan clubs of their favorite bands and write letters to their heroes,
(20) _________________ to get a reply written by the club secretary. Today’s teenagers don’t need to wait. By following their idols on Twitter, they get all the news the minute it happens: their meals, activities, or even thoughts. And all the news comes directly from the bands themselves.
Creating Movements
Twitter allows people who think the same way to get together and (21) ______________. These problems may be cyberbullying, sexism, or racism. They can share information, organize campaigns, and put pressure on related departments. Twitter has given the man and woman on the street the power to make a difference.
Identifying the source of a piece of news
It’s good to get an idea of the background of a person who says or writes something. Are they an impartial expert or someone who wants to change your opinion to suit their own agenda? For example, this statement about a flu epidemic, “Patients can already spread the virus a day before they’ve even fallen sick themselves”, is more likely to come from a doctor than a politician. On the other hand, “We have to stop people who are carrying the virus from getting into the country” is more likely to come from a politician. (22) _____________, you’re better able to decide how much importance to give it and whether you can really trust what they say.
Việc làm nào dưới đây là biểu hiện của đạo đức kinh doanh?
Cảm xúc mùa thu của tác giả nào?
Tình huống cầu thủ ghi bàn và cho biết bộ não của cầu thủ nhận được thông tin từ những giác quan nào?
Do nhu cầu về hàng may mặc ngày càng tăng nên chị P đã nhân cơ hội mở rộng quy mô sản xuất hàng may mặc và đa dạng mẫu mã, nâng cao chất lượng sản phẩm. Trong trường hợp trên, chị P đã vận dụng chức năng nào của thị trường?
Read the following passage about powering 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.
As we continue to face the impacts of climate change, having a green environment has become increasingly important to the future of our society. To achieve this, the world is shifting towards green energy, and two particular types of energy at the centre of this movement are solar power and wind power.
[I] Solar power is all about harnessing the energy of the sun by using solar panels to convert sunlight into usable electricity. [II]. Moreover, solar panels are perfect for installation on a small scale, such as in private homes, since they require very little maintenance and have a long lifespan. [III] However, the ability to generate solar power depends on the time of day and weather conditions. This means that solar panels are often less useful if they are installed in places where sunny weather is not typical. [IV]
Wind power, on the other hand, involves converting the energy of the wind into electricity using large turbines. Wind power doesn’t produce any greenhouse gases, but it is not ideal for private use since turbines require consistent care. However, wind farms can be installed on a large scale and are able to produce electricity continuously regardless of the time of day. This means that if there were more investments in wind power, it could be a viable way to provide energy for major cities and even for whole regions.
Wind and solar power contribute significantly to a green environment by reducing our reliance on fossil fuels, helping us cut down on pollution and slow climate change. Additionally, using renewable energy sources helps promote spending on sustainable development by creating new career opportunities in the green energy sector.
For now, the biggest challenge of adopting green energy is the costs associated with installation and infrastructure, but the benefits unquestionably outweigh the downsides. If we want to stop the climate crisis and create a better and more sustainable future, green energy sources will undoubtedly be the key.
The word they in paragraph 2 refers to ______.
Ngọn núi nào cao nhất ở Cộng hòa Nam Phi?
Phát biểu nào dưới đây không đúng về ammonia?
Công nghệ phổ biến trong lĩnh vực luyện kim, cơ khí gồm mấy loại?
Nguyên tố Fe là thành phần cấu tạo của bào quan hay hợp chất nào sau đây?
HeidiSQL hỗ trợ kiểm soát việc cập nhật dữ liệu của trường khoá ngoài bằng cách?
Read the following passage about education in Nepal 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.
Fashion in the 1960s reflected the cultural and political upheaval of the time. The hippie and counterculture movement gave rise to accessories like Pocahontas-style headbands and medallions worn around the neck. Hippies wore long, loosely fitting clothing, often in natural fabrics. Hemlines rose as Mary Quant popularized the miniskirt and hot pants in her lines for JC Penney. And mod fashion, with brightly colored space-age geometric patterns, shift dresses and colored tights became the mainstream. Both miniskirts and mod-shift dresses were worn with knee-high go-go boots.
[A] During the 1970s, the loose-fitting hippie clothes of the prior decade gave way to exotic fabrics and bell-bottom jeans for men and women. Hemlines continued to rise and hot pants continued their popularity, reflecting the flashy style of the decade. However, the 1970s also saw the popularity of a longer hemline, from mid-calf to ankle-length. [B] Women wore peasant-style clothing, especially blouses with off-the-shoulder necklines and lace trim, with their jeans or skirts. [C] Disco fashion emerged, featuring bright patterns and tightly fitting clothing meant to show off the body. Platform shoes elevated their wearer, male or female, anywhere from two to four inches or more. [D]
The 1980s saw another fashion upheaval. Angst-ridden punks wore Dr. Marten and steel-toed army boots, chains, tartan patterns, and bondage pants. Punks focused more on their hair during this period, dying, teasing and chopping their hair into asymmetric styles that seemed to defy gravity. Women—and men—experimented with heavy eyeliner in a variety of colors. Women wore neon colors, jelly shoes, tight jeans, leggings, leg warmers and oversized sweatshirts. Menswear-inspired looks also became popular for both sexes. Men wore ‘power suits,’ named so for their price, which made these suits a reflection of the wealth of the wearer. Women’s jackets featured big shoulder pads that made the shoulders appear higher and larger, similar to the male silhouette.
1990’s fashion was far more subdued than the garish, wild styles of the 1980s. Bands like Nirvana influenced the grunge look, which featured rock-concert tee shirts under plaid flannel shirts, jeans and long, greasy hair. Overalls were worn by both sexes, either with one or both shoulder straps unhooked. The punk style of the 1870s and 1980s evolved into the goth fashion trend, which featured black clothing, black boots and studded bracelets in the style of bands like Nine Inch Nails and Marilyn Manson.
The word “elevated” in paragraph 2 mostly means ______.
Phương án nào sau đây không là một vai trò của tin học đối với xã hội?
Phương pháp điều chế mã xung được thực hiện qua mấy bước?
Đơn vị của nhiệt hóa hơi riêng là
Một vệ tinh nhân tạo chuyển động tròn đều quanh Trái Đất ở độ cao bằng bán kính Trái Đất. Lấy gia tốc rơi tự do tại mặt đất \(g=10m/s^2\) và bán kính Trái Đất bằng \(R=6400km\). Chu kì quay quanh Trái Đất của vệ tinh là:
She couldn’t imagine him ________ in front of such a large audience.
Choose the word which has a different stress pattern from the others.
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.
Brady, as seen in a trailer that went viral earlier this week, was incredible that the undisclosed team opted to keep its incumbent starter.