sau khi thở ra thường rồi hít vào gắng sức thì được loại khí có tên là gì

vẽ đậu mầm hóng bạn nào đó :> ưu tiên các bạn yếu đc hay nhất

Tính số mol của 6,72 lít h2 đo ở 0oC và 2 atm

Người ta mạ đồng cho một chiếc hộp trong 7 phút lượng đồng bám vào hộp là 0,84 gram a) cách làm nay dựa trên tác dụng gì của dòng điện b) Trình bày cách làm c) trong bao lâu thì đồng bám vào hộp là 3,6 g

vào buổi tối mùa đông khi cởi đồ áo len hoac áo dạ ta thường thấy áo dính vào lớp áo trong và có tiếng nổ lét đét ta thường thấy áo dính vào lớp áo trong và có tiếng nổ nếu quan sát ở chỗ tối còn tháy có chớp sáng nhỏ. Hãy giải thích hiện tượng trên.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. 43. Question 43: The lion has long been a symbol of strength, powerful and cruelty. A. long been B. a C. symbol D. powerful 44. Question 44. It was not until his father threatened to punish him did he told him the truth. A. was B. to punish C. did D, told 45. Question 45. Happy people often find it easily to get to sleep and they sleep soundly. A. Happy B. easily C. to sleep D. soundly Câu 46 - 48 Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. 46. Question 46. She broke down the moment she heard the news. A. She was broken down for a moment when she heard the news. B. She broke her leg when she heard the news. C. On hearing the news, she broke down. D. When she heard the news, she was broken down. 47. Question 47. The doctor told him not to talk during the meditation. A. He was told by the doctor not to talk during the meditation. B. He has been told by the doctor not to talk during the meditation. C. He is told by the doctor not to talk during the meditation. D. He was being told by the doctor not to talk during the meditation. 48. Question 48. You’d better stop talking or you’ll dig yourself a deeper hole. A. You should stop talking, or else you’ll be too tired to go on digging. B. If you don’t stop talking now, you will cause yourself a problem. C. If you stop talking now, things won’t be better for you. D. You’d better stop digging, or the hole will become too deep. Câu 49 - 50 Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 49. Question 49. Susan didn’t apply for the summer job in the bank. She now regrets it. A. Susan wishes that she applied for the summer job in the bank. B. Susan felt regret because she didn’t apply for the summer job in the bank. C. If only Susan didn’t apply for the summer job in the bank. D. Susan wishes that she had applied for the summer job in the bank. 50. Question 50. It is a basic requirement in the modern world to be able to deal with figures. A. Dealing with the modern world requires a basic knowledge of figures. B. Being able to deal with figures is a basic requirement in the modern world. C. The world requires us to have a basic understanding of figures D. Dealing with figures requires a basic knowledge of the modern world.

các nhân vật lịch sử ( 1858-18840)

Find and correct the mistake in each of the following sentences 1. I have learnt how to swim in 2010 2. What sweet voice you have ! 3.My hometown is the best beautiful place in the world. 4. Nam is the intelligent student in our class 5.Which programme do you like best, Wildlife or Science?

Giúp với nha! 5* nếu có giải thích.

Cho câu văn sau : " Dọc sông những chòm cổ thụ dáng mãnh liệt đứng trầm ngâm lặng nhìn xuống nước " a ) Câu văn trên có sử dụng biện pháo tu từ gì ? Phân tích giá trị của biện pháp tu từ đó trong diễn đạt nội dung sau b ) Nêu cảm nghĩ của em về văn bản có câu văn trên Giúp e vs ạ đầy đủ nha thanks trc