Cho Đèn 1 ( 110v -110W) , Đèn 2 ( 110V-55W) , mắc nối tiếp vào hiệu điện thế 220V a) Tính R mỗi đèn b) 2 đèn sáng như thế nào, vì sao? c) Đèn nào sáng hơn d) Để 2 đèn sáng bình thường thì mắc thêm biến trở như thế nào?

Xác định và cả giải thích nữa nhé!!!

Đề nghị giải nhanh, đàng hoàng dùm cái! ngược lại bc nha:)))

Giải hộ mình bài 18 với ạ mình đang gấp í

Trong kháng chiến chống Pháp và chống Mĩ ,ông hoạt động ở Nam Bộ ,là một trong những cây bút có mặt sớm nhất của lực lượng văn nghệ giải phóng ở Miền Nam thời kì chống Mĩ cứu nước . Hãy xác định thành phần chính , thành phần phụ của câu văn và gọi tên loại câu theo ngữ pháp

cần gấp ạ . tại em buồn ngủ quá . ng trl nhanh nhât sẽ đc 5 sao ạ

rút gon biểu thức (x+1)^4+(x-1)^4

1. No sooner had we arrived at the station …………. the announcement started A. than B. when C. then D. last 2. ………………. he arrived at the bus stop when the bus came. A. Hardly had B. No sooner had C. No longer has D. Not until had 3. ………………. circumstances should you call the police. A. In B. Under C. Under no D. In no 4. Only after you obtain a driving license, ………………. a car. A. you are able to drive B. can you drive C. you will be able to drive D. did you drive 5. Hardly ever ………………. far from home. A. she traveled B. she has traveled C. did she travel D. she did travel 6. Only by working hard ………………. your final exam. A. will you pass B. you will pass C. did you pass D. you passed 7. Only when I have free time ………………. television. A. I watch B. will I watch C. do I watch D. I watched 8. ………………. that I knew all about her. A. She little thought B. She thought little C. Little did she think D. Little she thought 9. Not only is she intelligent ………………. A. but also she is kind. B. but is she also kind. C. but also is she kind. D. but she is also kind 10. ………………. that she couldn’t go on working. A. So was his pain B. Such was his pain C. He has so pain D. His pain was such 11. Never ………………. to school late. A. I go B.do I go C. I do go D. go I 12. Many books ………………. yesterday. A. did he read B. I read C. I did read D. read I 13. Beautiful ………………. in their autumn colors. A. the trees are B. are the trees C. do the trees are D. the trees do are 14. ………………. there again. A. Never will I go B. I never will go C. never I will go D. All are right 15. ………………. a doctor, I could help you. A. was I B. I was C. Were I D. I were 16. Had I not met her, I ………………. unhappy. A. have been B. was C. had been D. would have been 17. Nowhere ………………. delicious dishes like here. A. can you enjoy B. you can enjoy C. you enjoy D. you do enjoy 18. No longer ………………. here. A. he will live B. will he work C. will he works D. he works 19. Not until I came home ………………. that I had lost everything. A. I realized B. I did realize C. did I realize D. I did realized 20. ………………. him for the mistake he had made. A. Never in my life will I forgive B. Never in my life I will forgive C. I will never forgive in my life D. Never will I forgive in my life 21. ……………….I the judge, I would sentence him to death. A. Were B. Was C. Be D. Am 22. ………………. his advice, I would have succeeded in the final exam. A. Had I taken B. I had taken C. Had I take D. If I take 23. Had I not stayed up late last night, I ………………. tired now. A. wouldn’t be B. wouldn’t have been C. won’t be D. can’t be 24. Only by working three jobs ………………. able to support his large family. A. he was B. he is C. he's being D. was he 25. The boss didn’t know what to do, ………………. the rest of us. A. so did B. either C. neither D. nor did 26. ………………. you see Frank at the conference, give him my regards. A. Should B. Would C. Might D. Could 27. So ………………. that she licked the plate clean. A. being hungry B. great her hunger C. hungry was she D. had she hunger 28. Only after he had arrived at the airport ………………. for his passport. A. he did look B. did he look C. he looked D. he did looked I 29. Only if you tell me the truth, ………………. you A. can I forgive B. I can forgive you C. I forgive you D. I do forgive 30. You can refuse to answer my question in no way. A. In no way you can refuse to answer my question. B. In no way can you refuse to answer my question. C. In no way do you refuse to answer my question. D. In no way you refuse to answer my question.

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