xác định vai trò của clo,lưu huỳnh và các hợp chất của chún trong các phản ứng oxi hoá- khử cụ thể

làm giúp mình bài này với ạ (làm trên PC nhé)

Số tiếp theo của dãy này là gì? 3,8,23,68

Fill in the blank with the correct form of the given word 1. Right after the ……………… of the new aircraft, the space shuttle will be replaced. complete 2. You should ask someone’s ……………… before posting anything about them on the web. permit 3. Body language can be very ……………… in conveying our messages . effect 4. The lack of finance prevent them from proceeding their ……………… investigate 5. She asked me what the most ……………… planet was, but I had no idea about that. danger

Giúp mình với ạ II. Choose the best answer: 1. What may happen if John does not arrive in time ? A. go along B. count on C. keep away D. turn up 2. I wish everyone would use their bicycle …………………..we would reduce pollution A. because of B. therefore C. although D. so that 3. ……………….the sun is shining, it is still cold. A. Despite B. Nevertheless C. However D. Although 4. If you want to be healthy, you should ……………….your bad habits in your lifestyles. A. give up B. call off C. break down D. get over 5. …………………., such as pots and dishes, is made with clay baked in an oven. A. Glassware B. Woodwork C. Pottery D. Iron 6. Mr. Watson retired from his job early……………………his ill health. A. because B. due to C. despite D. though 7. I don’t know why they …………………….. our invitation to the party. A. closed down B. pulled down C. passed down D. turned down 8. ……………..both her legs were broken, she managed to get………………the bus before it exploded. A. Because/ on B. Besides/ in C. So that/ out D. Although/ out of 9. Sam: “When did your grandparents set up this workshop?” Len: “…………………..” A. Long time ago B. It’s half past six C. Since they got married D. It is in November 10. Bob: “Could you get to the park before 5p.m?” Maria: “…………………… I am still at the school.” A.I am afraid so B. I am afraid not C. I think so D. No problem 11. the boy can’t reach the shell………………………he is not tall enough. A. because B. although C. even though D. and 12. She couldn’t unlock it………………..she had the wrong key. A. while B. but C. though D. because 13. Nam failed the final exam ……………….he was lazy. A. while B. though C. because D. but 14. We watched TV the whole evening………………….we had nothing better to do. A. because B. though C. so D. but 15. We didn’t go for a walk …………………it was very cold. A. though B. because C. but D. so 16. They decided not to go for a meal…………………they were too tired. A. so B. because C. but D. so 17. I’m learning English……………….I want to get a better job. A. or B. because C. but D. if 18. Last night we came to the show late………………..the traffic was terrible. A. although B. despite C. and D. because 19. Lan couldn’t pass the exam…………………..she is too lazy. A. because B. because of C. although D. in spite of 20. ……………….his broken leg, he didn’t come to class yesterday. A. because B. because of C. despite D. so 21. I moved to the front of the room……………..I could see better. A. so as to B. in order to C. to D. so that 22. He opened the window…………………let fresh air in. A. for B. to C. in order for D. so as 23. he turned out the light………………..waste electricity. A. not B. without C. so that not D. in order not to 24. I am lighting the fire so that the house……………….be warm when they return. A. would B. wouldn’t C. will D. won’t 25. Mary worked hard………………….pass the examination. A. as so to B. so as to C. so that to D. in order not to 26. She is taking science course at school………………..order to choose science for her profession. A. so B. on C. in D. at 27. she weighed herself……………….know the pull of the earth exerting on her. A. for B. so that C. in order D. to 28. He hurried so that he………………….miss the train. A. won’t B. doesn’t C. didn’t D. wouldn’t 29. He does morning exercise regularly……………to improve his health. A. not B. without C. so that not D. in order 30. Mary took her brother to school for him………………..English. A. to learn B. learning C. learns D. learned 31. We have to start early………………we won’t be late. A. so that B. so as to C. because D. although 32. The school boys are in hurry……………they will not be late for school. A. so as to B. to C. in order that D. for 33. We set off early…………….we wouldn’t get stuck in the traffic. A. although B. so that C. because D. in case 34. My mother went to London………………see my aunt’s family. A. in order to B. so that C. not to D. not 35. Julie saves money………………….buy a new motorbike. A. not in order to B. as so to C. so that D. so that she can

🥺🥺 Vẽ ảnh dưới Y/c : Line + có tâm + Tô màu đầy đủ 🥺 👁👁 Cưng chết mất trời ơi ~~ Cuốn xỉu

x/-3 = y/7; y/-2=z/5 và -2x - 4y + 5z = 219 Giúp mình với ah!!

Mọi người giúp với ạ. Cần gấp ạ

Trong mặt phẳng Oxy, cho đường thẳng (d) x-y=0 và đường tròn (C) x^2+y^2-2x+2y-2=0.Tìm điểm A thuộc (C), B thuộc (d) sao cho I(3, 2) là trung điểm AB.

. Một gen cấu trúc có 120 chu kì xoắn (C), 2800 liên kết hiđrô (H). Trên mạch của gen dùng làm khuôn để tổng hợp mARN có số nuclêôtit loại ađênin = 600, loại guanin = 300. a. Hãy xác định: - Số nuclêôtit từng loại của gen. - Số nuclêôtit từng loại của mARN được tổng hợp từ gen. - Số lượng axit amin trong chuỗi axit amin được tổng hợp từ mARN b. Khi gen trên tiến hành tự nhân đôi liên tiếp tạo 16 gen con. Hãy cho biết: - Có bao nhiêu gen con không còn chứa mạch của gen ban đầu. - Có bao nhiêu nuclêôtit được cung cấp cho quá trình nhân đôi tạo 16 gen con giải giúp mình với ạ