Cho tập hợp A={x∈R∣∣(x2–1)(x2+2)=0}. Các phần tử của tập A là
Câu hỏi liên quan
Cơ quan nhà nước nào có thẩm quyền thông qua các dự toán ngân sách và giám sát ngân sách nhà nước?
Chọn đáp án đúng
Đặc điểm nào không đúng với nền kinh tế Liên bang Nga?
Biểu hiện đặc trưng của bệnh tụ huyết trùng trâu bò là
Biểu diễn dữ liệu logic trong thực tế có thể được thể hiện dưới dạng nào sau đây?
Các quốc gia nào sau đây ở khu vực Tây Nam Á có ngành chăn nuôi gia súc phát triển?
Nội dung về việc chưa thực hiện tốt quy định của Hiến pháp về chủ quyền, lãnh thổ là gì?
Nội dung phản ánh đúng vai trò của khối đại đoàn kết dân tộc đối với sự nghiệp xây dựng và bảo vệ Tổ quốc trong lịch sử Việt Nam là:
Công suất định mức của động cơ là gì?
Cho hàm số \(y=f\left( x \right)\) xác định trên \(\mathbb{R}\backslash \left\{ -1;1 \right\}\), liên tục trên mỗi khoảng xác định và có bảng biến thiên như sau
Đồ thị hàm số có bao nhiêu tiệm cận ngang?
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)_____.”
Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 23 to 30.
The Koromi trend has taken social media by storm, influencing fashion, lifestyle, and online communities worldwide. Originating in Japan, Koromi is characterized by a unique blend of gothic aesthetics, cute elements, and bold self-expression. Unlike mainstream kawaii culture, which emphasizes bright colors and cheerful themes, Koromi embraces darker shades, punk influences, and a rebellious attitude. This fusion of edginess and playfulness has resonated with many young people looking for an alternative form of self-representation.
Social media platforms like TikTok and Instagram have played a crucial role in popularizing the trend, as influencers and fashion enthusiasts share their interpretations of the Koromi style. The trend's rise is also linked to a growing appreciation for individuality and alternative fashion in contemporary youth culture.
Beyond fashion, the Koromi trend has influenced makeup styles, accessories, and even music preferences. Many followers of this aesthetic incorporate dark eyeliner, edgy clothing, and playful accessories to create a distinctive look. As more people adopt the Koromi lifestyle, brands have started releasing special collections inspired by the trend. However, some critics argue that the commercial adoption of Koromi dilutes its original meaning and turns it into a passing fad rather than a genuine subculture.
While Koromi's popularity continues to grow, it remains a niche trend compared to mainstream fashion movements. Its impact, however, is undeniable, as it encourages self-expression and challenges conventional beauty standards. Whether it will evolve into a long-lasting cultural phenomenon or fade away as another internet-driven craze remains to be seen.
According to paragraph 3, which of the following is NOT mentioned as an influence of the Koromi trend?
Một phân tử DNA có khối lượng 9.105 đvC. Phân tử DNA này có hiệu số giữa nucleotide loại A với loại nucleotide không cùng nhóm bổ sung là 30%. Số nucleotide loại G của phân tử DNA này là bao nhiêu?
Nhật Bản trở thành siêu cường tài chính số một của thế giới từ khi nào?
Kết nối nào sau không phải là kết nối phổ biến trên các PDA hiện nay?
Nhận định nào dưới đây là đúng về tình trạng tài nguyên sinh vật nước ta?
Nguyên tử khối trung bình của vanadium (V) là 50,94. Nguyên tố V có 2 đồng vị, trong đó đồng vị 2350V chiếm 0,25%. Số khối của đồng vị còn lại là
Cho tập hợp P = {1; 3} và tập hợp Q = {3; x}. Giá trị của x để P = Q là:
Hệ thống ngân sách nhà nước gồm mấy bộ phận chính?
Read the following passage 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.
Medical breakthroughs
After twenty years of research, scientists have finally succeeded in developing a vaccine for dengue, a viral disease found in tropical areas. (18)______. According to the World Health Organisation, each year between 50 and 100 million people develop dengue, (19 ______ . The commercialized vaccine can protect children in Asia and Latin America against the virus.
Artificial limbs have been around since ancient times, but no prosthetic has been as lifelike as the Bebionic small hand. (20) ______ . Electrical impulses triggered by the user's muscle movements (21)______. Specifically aimed at women and teenagers, the artificial hand enables the user to perform a range of activities previously unmanageable, such as using cutlery and riding a bike.
Good news for migraine patients - a special device is available. The battery-driven headband sits across the forehead and over the ears and has a self-adhesive electrode, which helps it stay in place. This electrode applies an electric current to the skin and tissue below the headband stimulating the nerves which are said to trigger the headaches. By wearing the headband for the recommended twenty minutes per day, (22)______.