Định nghĩa về truyện dân gian

_Hợp chất hưu cơ A có tỉ khổi với H₂ là 13.Khi đốt cháy 2 gam A thu được m gam CO₂ và a gam H₂O.Cho toàn bộ lượng CO₂ ở trên hấp thụ hết vào dung dịch Ca(OH)₂ dư thấy tạo ra 40 gam kết tỉa.Hãy xác định công thức cấu tạo A ? **Mn giúp đỡ e với

tìm gíatrịnhỏnhất5a=|x-2|+|2x-3|+|3x-4| làm được mk cho 5 sao

Vì sao người cha có nhóm máu A không truyền được cho người con có nhóm máu O?

mot lop hoc cọ 25 hoc sinh duoc chia deu thanh 5to hỏi to nhu the co bao nhieu hoc sinh

To make it easier to use. Thì dùng Wh - question nào?

his/went/family/back/their/to/hometown/coach/by 1câu 10 star ai mún thử hông

Cho số nguyên x. Chứng minh rằng: 49 không là ước của (x + 2)(x + 9) + 21

Question V: Complete the sentences with although/ in spite of/ because/ because of 1. Although it rained a lot, we enjoyed our holiday. 2. a, ……………………..... all our careful plans, a lot of things went wrong. b, ………………... we'd phoned everything carefully, a lot of things went wrong. 3. a, I went home early ……………….……... I was feeling unwell. b, I went to work the next day………………… .... I was still feeling unwell. 4. a, She only accepted the job ....................................... the salary, which was very high. b, She accepted the job ……………………………….. the salary, which was rather low. 5. a, I managed to get to sleep ………………………... there was a lot of noise. b, I couldn't get to sleep ………………………………...... the noise. Question VI: Make one sentence from two. Use the word(s) in brackets in your sentences. 1. I couldn't sleep. I was very tired. Despite I couldn't sleep despite being vey tired. 2. They have very little money. They are happy. In spite of ................................................................................................................... 3. My foot was injured. I managed to walk to the nearest village. Although .................................................................................................................... 4. I enjoyed the film. The story was silly. In spite of .................................................................................................................. 5. We live in the same street. We hardly ever see each other. Despite ..................................................................................................................... 6. I got very wet in the rain. I was only out for five minutes. Even though .............................................................................................................. Question VII. Rewrite sentences with In spite of / Despite /because / because of 1. Although Tom was a poor student, he studied very well. In spite of __________________________________________ 2. Mary could not go to school because she was sick. Because of _____________________________________________________ 3. Although the weather was bad, she went to school on time. Despite _______________________________________________________________ 4. Because there was a big storm, I stayed at home. Because of ___________________________________________________ 5. In spite of his good salary, Tom gave up his job. Although_______________________________________________________________ 6. He is so young. His acting is excellent. Although_________________________________________________________ 7. The film poster is fascinating. I don't want to see this film. In spite of_______________________________________________________ 8. Although our plan is careful, we made some mistakes. Despite___________________________________________________________

Cho x, y là các số nguyên. Chứng minh rằng: 5x + 47y là bội của 17 khi và chỉ khi x + 6y là bội của 17