cho cthh của các chất :MgO,AL,S,HCL,KOH,FeO,CO2,P2O5 CU và CL2. hãy cho biest cthh biểu diễn a)oxit axit b)oxit bazơ c)đơn chất d)hợp chất e)kim loại f)phi kim

V. Choose the best answer: 1. Household and garden waste is collected ……….. compost . A. to do B. to make C. to have D. to change 2. What type of garbage can you put …………. the compost . A. at B. in C. on D. of 3. Farmers collect household and garden waste to make ………… . A. compost B. floor coverings C. pipes D. glasssware 4. One of the solutions to reduce the shopping garbage is using ……….. . A. plastic bags B. coth bags C. wood bags D. shopping bags 5. The organization shows us how …………… the environment . A. protect B. protecting C. be protected D. to protect 6. I am very pleased …………….. you have done it perfectly . A. for B. with C. that D. how 7. ….................... is a mixture of decaying plants and vegetables that is added to soil to improve its quality. A. Compost B. Dung C. Trash D. Fertilizer 8. I threw______all the broken toys. A. beside B. away C. down D. in 9. Why do people in some areas ………… dry tea leaves ? – To keep mosquitoes away . A. heat B. fry C. burn D. cook 10. Everyday in the world , billions of empty cans …………… . A. throw away B. are thrown away C.have thrown away D. has been thrown away 11. We are delighted ……….. your English exam. A. you pass B. you passed C. you to pass D. your passing 12. You can ……….. information on recycling things in the library. A. look for B. take out C. throw away D. break up 13. Milk bottles can be ………….. after being cleaned. A. recycled B. soaked C. broken D. reused 14. We are looking forward …………. you in June. A. to see B. to seeing C. seeing D. to be seen 15. You’ll get back your ………. when you bring the cans back for recycling. A. payment B. deposit C. account D. envelope

Air pollution deaths will double by 2050 if nations don’t act. (Unless) => ____________________________________________________________________. Water pollution causes the death of all forms of life in the water bodies. (results) => ____________________________________________________________________. I think you should use energy efficient light bulbs. => If I _____________________________________________________________________ Due to a hurricane last night, I was without electric power. => Because there _________________________________________________________

Bước 1: S←10; x←1.5. Bước 2: Nếu S≤5.2, chuyển tới bước 4 .Bước 3: S←S-x và quay lại bước 2. Bước 4: Thông báo S và kết thúc thuật toán. A. 4 B. 3 C. 5 D. 6

Làm lại cho mik hai bài nhé Mik đang cần gấp để nộp

Giúp mình bài tự luận của các câu này với

Tìm hai số biết tổng bằng 19 và tổng bình phương bằng 185.

$\left \{ {{\frac{36}{y} = \frac{42}{x} + 4} \atop {x-y=1}} \right.$ ⇔ $\left \{ {{\frac{36}{y} = \frac{42}{y+1} + 4} \atop {x=y+1}} \right.$ ⇔ $\left \{ {{y=2} \atop {x=3}} \right.$

I. Choose the word whose underlined part is pronounced differently from the others. 1. A. camp B. language C. native D. accent 2. A. capital B. scenic C. Scotland D. iconic 3. A. increased B. provided C. haunted D. founded 4. A. loch B. schedule C. French D. chaos 5. A. brigade B. kilt C. liberty D. icon

ai đó tìm hộ mik 10 danh từ, động từ, tính từ có 2 âm tiết với