tại sao về mùa đông khi trời lạnh dưới một mức nào đó ta nhìn thấy hơi thở của mình tạo thành 1 luồng trắng đục trong không khí mà ta thường nói rằng thở ra khói? Tại sao hiện tượng này càng rõ khi ta thở ra bằng miệng thay vì bằng mũi Giải thích từng bước hộ mình với mình hết điểm rồi nên mong các bạn thông cảm

Các anh chị, mod, chuyên gia làm ơn giúp em bài này với gấp lắm rồi 4h15 là cần rồi a (sau 4h15 trả lời thì cx chẳng đê lm j) làm nhanhhhhhhhhhhhhhhhhhhhhhh

1. If she …………………….. the lottery last year, She……………………..rich now. A. Have won/would be B. had won/would be C.won/would be D. wins/will be 2. If I ……………………..the homework last night, I…………………..bonus today. A. Had done/would get B. had done/would have got C. done/would get D. does/will get 3. If we had played this game yesterday, we……………….a lot of money now. A. Will have B. may have C. would have had D. would have 4. If it ……………………………last night, it would be cold today. A. Had rained B. rained C. have rained D. was raining 5. If she……………….to me, she……………………..in trouble right now. A. Had listened/would be B. had listened/would have be C. had listened/would not be D. A & B giải thích đầy đủ->vote5sao+câu tl hay nhất

I. Put the verbs in correct tense: 1. I (be)___Tam . I ( be)_________a student. These (be)__________my brother and sister. 2. Who (be)______________they? They (be)___________Minh and Hoang. 3. How many people ( there/ be)________________-__ in your family? There (be)________four. 4. Four people (be)___________in the yard. They (be)___________students. 5. Her brother (be)___________twenty and her sister (be)___________twenty four. 6. What ___________you (do)___________? I (be)____________a doctor. 7. What___________he (do)____________? He (be)__________an engineer. 8. What _____________Nam and Lan (do)___________? They (be)___________students. 9. How many floors ________your school (have)__________? It (have)__________two floors. 10. My brother and I (be)____________students. 11.Ba ( be ) ……my friend. He (live)………In Ha Noi with his mother, father and elder sister.His parents(be)……teachers.Ba(go)……to Quang Trung school. 12.Nam (like)…sports. He( swim)…,he (play)…. soccer and he (play)…badminton. 13.We (go)……….to school everyday. 14.She(not drink)………………coffee. She (drink)………….. cocacola. 15.It (be)……….often hot in the summer. 16.What………you………(do) every morning ? 17.The earth (circle)……….. the sun once every 365 days. 18. I (see¬)………….her very often. 19.Most rivers (flow)………. into the sea 20.Vegetarians (not eat)………………meat. 21.Bees (make)……………..honey. 22.Where………..Martin……….(come)from? 23.The sun (rise)………..in the east and(set )…………in the west. II. Give the correct form of the verb in bracket 1- Miss White's students ( not be) big. 2- Lan's brothers (be) doctor. 3- Nam's father (be) Mai's teacher. 4- Mai and Hoa (not be). Mr Tam's students 5. I(be not) a student. I (be) a nurse. 6. They (be not) her father and mother. 7. The doctors (be not) in the room. 8. Their classroom (be not) on the fourth floor. 9. Hung’s house (be not) on Tran Phu street. 10. These ( be not) her father’s books 11. Lan and Huong(be not) in class 7A. Their teacher ( be not) Mr Tien. 12. You(be) a nurse? 13. They (be) in the classroom? 14. Your house (be) in Da Mai? 15. It (be) 10 o’clock now? 16. These schoolbags (be) Lan’s and Hoa’s? 17. Huong’s classroom (be) on the second floor?

Giúp ah, càng nhanh càng tốt ah

khi nhiệt độ tăng thêm 50oC. Có nghĩa là như thế nào. Có phải là từ 0 độ C tới 50 độ C không

Đề vẽ đậu mầm bùn, anime bùn, ... NL: Trong vừa qua, ai còn nhớ tui ko ? chắc họ quên mik do nơi nỗi bùn.....

a) Cho đa thức B(y) = my - 3; tìm m để biết B(-1) = 2 b) Cho đa thức D(x) = -2x2+ ax -7a + 3 ; tìm a biết rằng D(x) có nghiệm là -1.

rút gọn bt ($\frac{x+2}{x√x+1}$ - $\frac{1}{√x + 1}$ ). $\frac{4√x}{3}$ với x$\geq$ 0

viết đơn xin vào trường chuyên nguyễn đăng đạo mình tim và 5*