Câu 1:Trình bày các nguyên tắc bữa ăn hợp lí? Nêu Ví dụ Minh họa Câu 2:Thực đơn là gì?Để xây dựng thực đơn gồm những nguyên tắc nào?Cho ví dụ minh họa Câu 3:Nêu nguồn gốc chức nặng của chất đạm và chất đường bột?lấy ví dụ minh họa

Bài 1: tính bằng cách thuận tiện nhất 7/9-3/7+2/3-4/7 = = = b) 8,12×6+16,24×4-4,06×8 = = = = c) 5m²7dm²+2,6m²+3,33m² = = = d) 14,52 : 1,5 - 9,81:1,5 = = = c) 5/9:4/7+13/9×7/4 = = = = Bài 2 : tính 29,17- (65,82-31,82 : 3,7) × 0,3 = = = Giúp mik nha các bạn Bn nào giúp mik hết 2 bài mik vote cho 5* và ctlhn

1. Typhoons, droughts, and floods are ...................... disasters happening so often in my country. (nature) 2. He is very ........................ towards his friends. He always tries to help if one of them has a problem. (consider) 3. We can limit natural disasters by ................................. our environment. (protect) 4. Nam is the most effective .................................... in our club. (act) 5. It is ........................................ for you to live in an earthquake zone. (danger) 6. We left the town .............................. before the lava hit it. (safety) 7. ............... waves are one of the great forces of nature. (tide) 8. It was a frightening sight for Pliny to see the volcanic ................................ of Mt. Vesuvius. (erupt) 9. We had left the city..................................... before tidal waves came. (safety) 10. Thousands of people have been made................................ by the flooding. (home) 11. Thunder makes me................................. (terrify) 12. Our _________ turns out to be correct. (predict) 13. The building was _______ damaged by the fire. (extend) 14. The most ____ earthquake in Japanese history damaged Tokyo and Yokohama. (disaster) 15. A typhoon is going to hit our area. What sorts of__________ shall we make? (prepare) 16. Today __________________can predict when a tidal wave hits land. (science) 17. A tidal wave brings death and _________ in its way. (destroy) 18. They have a strong sense of ________________ in their work. (proud) 19. John has been nominated as the most effective ___________ in the town charity program. (active) 20. Everyone likes Jim because of his _________________. He gave a great sum of money to charity. (generous)

5. I / have / rest / when/ volcano/ erupt. ->.............................................................................................................................................................................. 6. The Japanese/ keep / talk about/ earthquake/ that/ destroy/ Okinawa. ->............................................................................................................................................................................... 7. The man/ who/ be / in/ weather forecast program/ be / his father. ->............................................................................................................................................................................... 8. Although his leg was broken, he managed to get out of the car. -> In spite.................................................................................................................................................................. 9. It may rain on your way home, so take a raincoat with you. -> In case................................................................................................................................................................... 10. That man used to work with me when I lived in New York. -> That’s a man.......................................................................................................................................................... 11. The storm destroyed the town completely. -> The town.............................................................................................................................................................. 12. Despite his age, Mr. Thanh runs five kilometers every morning. -> Even...................................................................................................................................................................... 13. He didn’t take anything as he left the factory. -> He left the factory................................................................................................................................................. 14. This house is less comfortable than the one we saw last month. -> This house is not................................................................................................................................................... 15. He was so tired that he felt asleep before the end of the film. -> He was too...........................................................................................................................................................

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Tìm n€ Z sao cho 2n -3: hết cho n+1 Cho đa thức P (x)=ax^3+bc^2+cx. Với P(0) và P(1) là số lẻ Chứng minh rằng P(x) không thể có nghiệm là số nguyên

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viết 1 đoạn văn khoảng 100 từ kể về 1 người bn thân nhất của mik bằng tiếng anh

1. The 1989's earthquake destroyed many buildings in San Francisco. -> ......................................................................................................................................................................... 2. Natural disasters have killed thousands of people this year. -> ......................................................................................................................................................................... 3. In North America, people call a strong tropical storm a hurricane. ->………………….............................................................................................................................................. 4. Scientists can warn us about volcanic eruptions. -> ......................................................................................................................................................................... 5. Millions of people are listening to the weather forecast on TV. -> ......................................................................................................................................................................... 6. We cannot predict tornadoes long in advance. -> ......................................................................................................................................................................... 7. Scientists haven't discovered the cause of some natural disasters. -> .........................................................................................................................................................................

Cho tam giác ABC vuông tại A, có AB<AC. Trên cạnh BC lấy điểm K sao cho BA=BK. Từ K kẻ đường thẳng vuông góc với BC cắt AC tại D. a,Chứng minh tam giác ABD= tam giác KBD.b, Chứng minh BD là đường trung trực của đoạn thẳng AK. c, Qua K kẻ đường song song với BD cắt AC tại M. Chứng minh tam giác DKM cân. d, Kẻ ME vuông góc với BC ( E thuộc BC) chứng minh rằng ME < 1/2AM.R