Dẫn khí hidro qua chất rắn A nung nấu thu được chất rắn B có màu đỏ. Vậy chất A.B lần lượt là? A. Cu, CuO B. Fe, Cl2 C. Na, H2SO4 D. Zn, HCl

Hãy viết thân bài miểu tả cây hoa cúc phải hay và dài nha Cấm chép mạng

Hộ mình bài 3 với ạ :((( chỉ cần câu a và b thôi ạ

làm sao để tìm ĐCNN và GHĐ của vôn kế?????

tả cảnh quang lớp học trong giờ kiểm tra (mở bài và kết bài thôi nhé) ko chép mạng ko copy và có thể trả lời nhiều mở bài kết bài bạn nào chép mạng hay copy là mình biết hết đấy nhé vì mình đọc qua nhiều rồi

lí do cần bảo vệ các động vật quý hiếm

1 xe máy đi từ A đến B với vận tốc 35 km/h . Lúc về người đó đi với vận tốc 40km/h . Do đó thời gian về ít hơn thời gian đi 20 phút . Tính quãng đường AB.

xin chào mọi người ai có thể giúp em viết 1 đoạn văn ngắn nói về topic your lifestyle không ạ em bí quá rồi huhuu

Question 3: Choose the word or phrase that best complete each sentence. 1. Don’t let a good chance go ............... A. on B. off C. by D. over 2. Leave it ....................it is. A. that B. as C. like D.so 3. Stop now! You've done ..............work for one day. A. too many B. plenty C. quite more D. quite enough 4. Never ...............a gift horse in the mouth. A. feel B. catch C. hold D. look 5. Give me a word .....................with S. A. beginning B. began C. begins D. begin 6. He seldom goes fishing........................? A. doesn’t he B. is he C. does he D. isn't he 7. ................weather! We can't go out for a walk now. A. How terrible B. What terrible C. How a terrible D. What a terrible 8. Not one of the students ...............the answer to that difficult problem. A. know B. knows C. is knowing D. has known 9. She spoke quietly to him ................nobody else could hear a word. A. because B. if C. although D. so that 10. If you want to ..............success in life, you have to work hard. A. achieve B. receive C. award D. earn 11. A surgeon is a doctor who performs an operation. A. studies B. researchers C. is interested in D. carries out 12. We will wait until he shows up A. appears B. answers C. speaks D. finishes Question 4: a) Fill in each numbered blank with a suitable word According to the writer, the modern father looks after his children and helps in the house, even (1)............... his wife does not goes out to work. The division (2)................ the roles of the mother and the father is no (3)............... very clear, and dad does (4).................. share of child care: he can change the baby, dress the children or make the dinner.This new image of the father is, of (5)...................., completely (6) ..................from the still traditional dad,(7).................... represents authority, is the head of the household (8).................makes all the "important" decisions. His wife is (9).....................for the domestic side of family life while he (10)..................the one who advises or punishes as necessary. (if/though - between/of - longer/more - his/the - course - different - who - and - responsible - is/remains/stays) b) What do these sentences imply? A or B? 1. I really appreciate your staying A. You've decided to stay . B. You might stay. 2. Would you might if I opened the window? A. You have opened the window already . B. You haven't opened the window yet. 3. I have a report to write A. I'm going to write a report. B. Someone else already wrote the report. 4. He eats his father's salt. A. He lives together with his father. B. His father provides him with food and clothing. 5. They are in the same boat. A. They are traveling by boat B. They have the same danger to face.

Giúp mik vs ạ Nguyên nhân Pháp đánh Bắc Kì lần 2 ? Vì sao 2 lần triều đình liên tiếp kí 2 hiệp ước 1874 và 19/5/1883