6 I've never met such a famous singer before -this is the fist time... 7 she has never been to the ballet before -It is the first time... 8 we haven't seen Tom since he moved to Bristol -the last time... 10 lucky has't worn that dress since Barbara's wedding -the last time
(x - 3)^2 - 2(x - 1)=x(x-2)^2 - 5x^2
ai là kẻ gây ra chiến tranh thế giới thứ 2
Mọi người giải quyết dùm em bài này ạ tại em đang cần gấp
Cho tia Oy nằm giữa 2 tia Ox và Oz. Trên tia Ox lấy 2 điểm A và A' sao OA=AA'. Trên tia Oy lấy 2 điểm B và B' sao cho OB = 2cm; BB' = 4cm. Trên tia Oz lấy điểm C và C' sao cho OC/OC'=2/3(ba điểm A, B, C không thẳng hàng) a)Tính AB/A'B' b)Chứng minh tam giác ABC~tam giác A'B'C' Giúp mình với các bạn huhu
Giúp mik vs ạ thks mọi người nhìu 22
1. The ……………….. fish are floating in the water. DIE 2. Aquatic plants may die because of the ……………….. water. POLLUTE 3. ………..…… is the substance that can kill you if you drink or eat it. POISONOUS 4. ………..…… habitats have been destroyed in recent years. NATURE 5. The water is ……………….., so the fish are dead. POISON 6. The acid rain caused the ……….... to the trees in this area. DAMAGE 7. The river is ……………….., so we can’t drink water from it. CONTAMINATE 8. A number of cleaning products contain ………..…… chemicals. HARM 9. Fumes from the cars and trucks are serious air …………….... . POLLUTION 10. The……………………. of lakes, rivers, oceans or underwater causes water pollution. CONTAMINANT 11. Are all types of pollution ……………….. to the death of humans and animals? HARM 12. The ……………………. are concerned about the oil spills in East Sea. ENVIRONMENT 13. Dumping ……………………. waste into the lakes and rivers has caused serious water pollution. INDUSTRY 14. Manypeople in this area have cholera because they drink ……………….. water. TREAT 15. If we use water ……………………. , more people will have fresh water. CARE 16. The polluted water results in the …………………. of many aquatic animals. DIE 17. Do storm water and the atmosphere bring non-point source ……………….. ? POLLUTE 18. Don’t use poisonous chemicals. They are………..…… to our health. HARM 19. Water pollution causes the………..…… of a lot of fish. DEAD 20. Light ………..…… makes us unable to see the stars in the sky. POLLUTANT 21. The serious ………..…… has left the river with very few fish. CONTAMINATED 22. Water pollution makes a lot of fish………..…… . DEATH 23. The acid rain has caused the great …..……….... to the environment. DAMAGED 24. An…………....…… of agrochemicals is pesticides. ILLUSTRATE 25. Noise is considered as………..……..… pollution. ENVIRONMENT
Giải phương trình : (x - 1).(x^2 + 5x -2) - x^3 +1 = 0
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