Nếu tia OC nằm giữa hai tia OA và OB thì sẽ như thế nào?

Cho m gam Al tác dụng với HNO3 dư thu được 6,72 lit hỗn hợp N2 và N2O (đktc) có tỷ khối so với H2 = 18. Tính m?

Giúp mình nhanh với ạ, nếu bạn nào đúng và nhanh mình sẽ cho 5 sao ạ

GIÚP M VS, 20Đ LÀ SỐ ĐIỂM LỚN NHẤT CÓ THỂ CHO CÁC BN LM ƠN GIÚP VS, HELP ME :'( - M CHỈ CÓ 20 CÂU VÀ 2O ĐIỂM THÔI, CÁC BN GIÚP M VS M ĐAG LM BÀI THI ĐÓ 5. My mother _______jogging every morning A. does B. is C. goes D. plays 6. _______he like sports? A. does B. do C is D. why 7. What about _______by bike A. go B. to go C. To going D. going 8. _______are you going to do tonight?A. what B. who C. which D. when 9. Mai _______cool weather A. like B. likes C. liking D. to like 10. Which sports does he play? A.He plays table tennis B. he is playing table tennis C. He is going to play table tennis D. yes, he does 11. I am going to _______the CitadelA. come B. stay C. look D. visit 12. How many _______are there in a week? A. hours B. weeks C. days D. years 13. What _______ she like? She'd like a glass of milk. A. is B. would C. do D. does 14. My sister doesn't like fish.She _______ fruit,chocolate and vegetables.A. like B. is like C. likes D. would 15. Is there anything to drink? I'm _______. A. hungry B. tired C. thirsty D. cold 16. What do you _______ in your free time? I play soccer.A. do B. go C. like D. are 17. How _______ do you brush your teeth? Twice a day. A. many B. much C. often D. old 18. They are _______ football, now. A. play B. playing C. watch D. watches 19. _______ sports does your brother play? Badminton and swimming A. Who B. What C. How D. Which 20. What's the weather like in the _______? It's hot. A. spring B. winter C. summer D. Fall 21. _______ sports do you play? A. What's B. Which C. How D. Where 22. We need a tent to go_______ A. fishing B. camping C. swimming D. jogging 23. _______ weather do you like? A. What B. What's C. When D. What Runtime. 24. I'm going to _______ my friends on SundaysA. visits B. visit C. visiting D. to visit 25. Nam does________home word in the evening.A. her B. his C. my D. your

khi nào ta biết ảnh S' là ảnh thật khi nào là ảnh giả

Read the passage carefully, then choose the correct answers. The latest addiction to trap thousands of people is the Internet, which has been blamed for broken relationships, job losses, financial ruin, and even suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could cause serious problems and ruin many lives. IAS is similar to other problems like gambling, smoking and drinking: addicts have dreams about the Internet; they need to use it as the first thing in the morning; they lie to their parents and partners about how much time they spent online; they wish they could cut down, but are unable to do so. A recent study found that many users spend up to 40 hours a week on the Internet. Some of the addicts are teenagers who are already hooked on computer games and who find it very difficult to resist the games on the Internet. Internet addicts find it hard ___________. A: to lie about the time they spent online B: to use the Internet in the morning C: to spend more time on the Internet D: to spend less time on the Internet

Giải hộ mình câu 1. Mình đang cần gấp

Choose the underlined word(s) that need correction in each of the following sentences. I find it’s difficult to understand some of my Scottish friends because of their accent.

Điền vào mỗi khoảng trống với một từ trong hộp. most walking tourist ever explore must around sunny Hi Steve, Greetings from Rome! We arrived at 8:30 this morning and are staying in a lovely hotel in the city centre. It is near all the (1)_________ attractions. The weather is warm and (2)________! The city looks really amazing. We can’t wait to (3)_________ everything! This afternoon, we are going to take a stroll (4)_________ the Centro Storico (Historic Center), which beautiful historic squares – Piazza Campo de’ Fiori and Piazza Navona. Tomorrow morning, we are going to visit Colosseum, the largest amphitheater (6)_________ built in Roman Empire, and then we are (7)_________up the Palatine Hill. In the afternoon we are going to visit Pasta Museum. It’s going to be a great weekend! I (8)_________ go now. See you when I come back. Love, Army

cảm nhận của em về đoạn trích truyện chiếc lược ngà kh