Cho 2 tia đối nhau Ox và Oy trên cùng 1 nửa mp bờ đường thẳng xy vẽ 2 tia Oz Ot sao cho xOz = 78° yOt = 51° Tính yOz C.tỏ rằng Ot là tia pg của yOz

19. Sự nảy mầm là sự phát triển từ …………… thành cây con. Từ ngữ cần điền vào chỗ chấm là: A. Hạt B. Một bộ phận của cây mẹ C. Củ D. Lá 20. Biện pháp diệt côn trùng nào không có lợi cho đồng ruộng? A. Bắt sâu B. Phun thuốc trừ sâu C. Diệt bướm bằng vợt D. Phun dung dịch chế từ thảo dược

cuối cùng cx thi cúi kì xg gòii:> Vẽ bé mầm vui đi ạ;-; Hoặc vẽ j đó vui vui đi ạ ><

Làm giùm em bài 2 và 3 vs ạ Giải thik kĩ giùm em

giải pt sau $\frac{3x-2}{x+7}$ = $\frac{6x+1}{2x-3}$ /4x/ = 2x+12

Giúp mình với!!!! 1. Choose a word (A, B, C, D) that has the underlined part pronounced differently from the others.(0.5 pt) 1. A. food B. school C. tool D. book 2. A. compose B. emotion C. symphony D. concern 3. A. erased B. preserved C. attacked D. arrived 4. A. species B. pollute C. accept D. receipt 5. A. loves B. laughs C. crops D. earthquakes 2. Choose the word (A, B, C, D) whose main stress pattern is not the same as that of the others. (0.5 pt) 6. A. tomorrow B. important C. mystery D. however 7. A. celebrate B. historical C. retirement D. communicate 8. A. frequently B. gymnastic C. adjective D. difference 9. A. understand B. engineer C. Vietnamese D. adventure 10. A. laboratory B. electricity C. education D. mathematics.

7) a, |x-4|+|x – 6| = 2 ; b, |3x +7|+ 3|2 – x| = 13 ; c, |x + 2| + |3x -1|+ |x-1|= 3 Giúp mình với ạ, mình cảm ơn

Bài 9 (0,5 điểm): Tứ giác ABCD có chu vi bằng 10 cm. CMR: 5 cm < AC + BD < 10 cm giúp em bài 9 đi em vote 5* ạ

trả lời phần d bài 9, ai trl nhanh cho ctl hay nhất+ 5 sao

1. I haven’t heard from him for 10 years. * A. I last hear from him 10 years ago. B. I last heard from him since 10 years ago. C. I last heard from him 10 years ago. D. I last to hear from him 10 years ago. 2. What kind of TV programmes do you like best? * A. What are you bored with? B. What do you want best? C. What's your favorite TV programme? D. What TV programme do you learn from? 3. The square in Hoi An is smaller than the square in Ha Noi. * 1 điểm A. The square in Ha Noi is not bigger than the square in Hoi An. B. The square in Ha Noi is not biger than the square in Hoi An. C. The square in Ha Noi is more big than the square in Hoi An. D. The square in Ha Noi is bigger than the square in Hoi An. 4. Let’s go out and have a drink. * 1 điểm A. Shall we to go out and have a drink? B. Will we go out and have a drink? C. Would we going out and have a drink? D. Shall we go out and have a drink? 5. This house is more modern than that house. * 1 điểm A. That house is more modern than this house. B. That house is moderner than this house. C. That house is less modern than this house. D. This house is the most modern. 6. Our neighborhood is quieter than your neighborhood. * 1 điểm A. Your neighborhood is the quietest. B. Your neighborhood is noisier than our neighborhood. C. Your neighborhood more noisy than our neighborhood. D. Your neighborhood is the noisiest. 7. His uncle helped him. He was able to finish his course. * 1 điểm A. His uncle helped him so he was not able to finish his course. B. Although his uncle helped him, he was able to finish his course. C. Because his uncle helped him, he was able to finish his course. D. His uncle helped him but he was able to finish his course. 8. My dream house will have a super smart TV in 10 years. * 1 điểm A. There is a super smart TV in my dream house in 10 years. B. There isn't a super smart TV in my dream house in 10 years. C. There are a super smart TV in my dream house in 10 years. D. There was a super smart TV in my dream house in 10 years. 9. This is the most beautiful sight I have ever visited. * 1 điểm A. This is the first time I visit such a beautiful sight. B. This is the first time I am visiting such a beautiful sight. C. This is the first time I have visited such a beautiful sight. D. This is the first time I visited such a beautiful sight. 10. It is my sister’s eighteenth birthday next week. * 1 điểm A. My sister is eighteen now. B. My sister was eighteen. C. My sister is going be eighteen next week. D. My sister will be eighteen next week. Question 11-15: Read the text and choose the correct answer. Today, over six billion people live on planet. This means that there are very few places on Earth with no people. One place that has very few people is at the bottom of the Earth. In Antarctica, you will not live there all year round. First, Antarctica is the coldest place on Earth. For example, it can be minus 130 degrees in the winter. Human cannot live in this kind of environment. Because it is so cold, very few plants and animals live there. This means there are no farms and no places to find wild plants and animals to eat. In order for people to live in Antarctica food must be sent there on boats, and this is expensive. Another problem is that Antarctica can be dangerous. Many people think it is safe to travel to Antarctica in the summer months when it is warmer. However, Antarctica is mostly ice, so when it is summer, the ice melts. When the ice melts, it can break, so people cannot travel around Antarctica during the summer. If the ice breaks, they could fall into the water and die. Antarctica is a tough place to live. 11. What is the text about? * 1 điểm A. Very few places on earth without people B. Why it is difficult to live in Antarctica. C. Sending food to Antarctica. D. Different animals found in Antarctica. 12. Antarctica is ___________. * 1 điểm A. Very far North B. full of plant, but no animals. C. The coldest place on the planet. D. A or B. 13. The author says that the ice breaks in Antarctica ___________. * 1 điểm A. in winter B. in spring C. in summer D. in autumn 14. What does the word “tough” in the last sentence mean? * 1 điểm A. not easy B. not popular C. strong D. simple 15. According to the text, which statement is true? * 1 điểm A. About six billion people live in Antarctica. B. Humans can live in Antarctica the whole year round. C. It is safe to travel to Antarctica in summer. D. It is hard to live in Antarctica.