có giá trị tuyệt đối âm x mũ 3 có giá trị bao nhiêu tại x = 2

5 Choose the word whose stressed pattern is pronounced differently from the others . A: unable B: unhealthy C: impolite D: imbalance 6 Choose the best answer A, B, C or D to complete the sentence. Question 8. I think robots will help us do many boring or difficult _____. A: jobs B: career C: roles D: work 7 Choose the underlined part A, B, C or D that needs correcting. ins. Today, airplanes help people travel faster. How do airplanes help you? Telephone Alexander Graham Bell invented the telephone in 1876. Before the telephone was invented, people kept in touch by writing letters or talking in person. Today the telephone makes it easier for people to talk to one another. How do telephones help you? Automobile The first four-wheeled gas-powered car was invented by Karl Benz in 1891. Before people had cars, they couldn’t travel easily. They walked or rode horses for short trips. They took trains or boats for long trips. Today cars are one of the main ways people travel. How do cars help you? Computer People worked for years to make the first computer. It was built in 1946. The first computer was called ENIAC. Today computers are an important part of many people’s lives. People use computers as tools to write, get information, and much more. How do computers help you? Question 19. It can be inferred from the passage that ________. A: Karl Benz didn’t like to walk or ride horses for short trips. B: Alexander Graham Bell wrote many letters in his lifetime. C: the Wright Brothers spent a long time trying to invent the airplane. D: someone had the idea to invent the computer in the 1940s or early 1950s. 9 Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Question 13. Chau: Many people think that the real inventor of the telephone was Antonio Meucci, a poor Italian American. Duong: _____. A: Really? Poor him! B: Really? How could he do that? C: Really? I don’t think. D: Really? He couldn’t do that. 10 Choose the sentence which has similar meaning to the first one. Question 23. Ba couldn’t do well in sciences at school. A: Ba was unable to do well in sciences at school. B: Ba was unable do well in sciences at school. C: Ba was able to do well in sciences at school. D: Ba was unable doing well in sciences at school. 11 Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions. Inventions That Changed Our World People have been inventing things for years. Paper was invented about 2,000 years ago. The wheel was invented more than 5,000 years ago. What would life be like without paper to write on or bikes to ride? Those inventions have made life easier. Airplane The Wright Brothers invented the first airplane in December 1903. That makes 2003 the 100th anniversary ! Before the airplane was invented, most people traveled by cars, boats, and trains. Today, airplanes help people travel faster. How do airplanes help you? Telephone Alexander Graham Bell invented the telephone in 1876. Before the telephone was invented, people kept in touch by writing letters or talking in person. Today the telephone makes it easier for people to talk to one another. How do telephones help you? Automobile The first four-wheeled gas-powered car was invented by Karl Benz in 1891. Before people had cars, they couldn’t travel easily. They walked or rode horses for short trips. They took trains or boats for long trips. Today cars are one of the main ways people travel. How do cars help you? Computer People worked for years to make the first computer. It was built in 1946. The first computer was called ENIAC. Today computers are an important part of many people’s lives. People use computers as tools to write, get information, and much more. How do computers help you? Question 18. What do all the inventions described in this text have in common? A: All the inventions changed how people travel. B: All the inventions made people’s lives easier. C: All the inventions were invented in the 20th century. D: All the inventions were invented by Americans. 12 Choose the sentence which has similar meaning to the first one. Question 25. The new teacher will teach us science tomorrow. A: We will be taught science for the new teacher tomorrow. B: We will be taught science by the new teacher tomorrow. C: We will taught science by the new teacher tomorrow. D: We will be teached science by the new teacher tomorrow.

Câu 3: Nghĩa quân Hai Bà Trưng toàn thắng sau khi: A. Làm chủ tình hình B. Làm chủ Mê Linh, đánh chiếm Cổ Loa, Tuy Lâu C. Tô Định bỏ trốn D. Giết Tô Định Câu 5: Việc Trưng Trắc được tôn làm vua và chọn Mê Linh làm nơi đóng đô có ý nghĩa gì? A. Khẳng định vai trò và vị trí của người phụ nữ trong lịch sử B. Lòng tự tôn dân tộc C. Phụ nữ nắm quyền D. Một triều đại mới được hình thành Câu 7: Tình hình kinh tế nước ta từ thế kỉ I đến thế kỉ VI có gì thay đổi? Câu 8: Trình bày những chuyển biến về xã hội và văn hóa nước ta ở các thế kỉ I

Giải theo kiểu tự luận vs ạ, k cần giải hết 4 câu cx đc cảm ơn

Cho tam giác ABCcân tại A. Trên cạnh BC lấy điểm D, trên tia đối của tia CB lấy điểm E sao cho BD = CE. Từ D kẻ đường vuông góc với BC cắt AB tại M, từ E kẻ đường vuông góc với BC cắt AC tại N. a)Chứng minh MD = NE b) MN cắt DE tại I. Chứng minh I là trung điểm của DE. c) Từ C kẻ đường thẳng vuông góc với AC, từ B kẻ đường thẳng vuông góc với AB chúng cắt nhau tại O. Chứng minh AO là đường trung trực của BC.

đốt cháy hoàn toàn 1,86g sắt ở nhiệt độ cao a) tính khối lượng oxit sất thu được sau phản ứng b) tính thể tích khí oxi cần dùng (đktc)

Cho đoạn thẳng AB và điểm C nằm giữa A và B. Trên cùng một nửa mặt phẳng bờ AB vẽ hai tam giác đều ACD và BCE. Gọi M, N lần lượt là trung điểm của AE và BD. CMR: a) AE = BD. b)tam giác CME= tam giác CNB. c) Tam giác MNC là tam giác đều.

Câu này chọn j mn ơi My sister started_________ English five years ago. A. learn B. learnt C. learning D. to learn

Cho các khẳng định sau -Nếu a là số hữu tỉ thì a cũng là số thực -Nếu a là số thực thì a là số hữu tỉ -Nếu a là số vô tỉ thì a không phải là số hữu tỉ -Nếu a là số vô tỉ thì a là căn bậc hai của một số tự nhiên Số các khẳng định đúng là: A.0 B.3 C.1 D.2

Bác Hồ đã dạy: “Việc học là công việc suốt đời”. Em hãy giải thích lời dạy trên và chứng minh đó là một quan niệm đúng đắn. (Bài 3 viết thành bài văn có đủ bố cục 3 phần)