Tại sao các hiện tượng nhiễm điện như khi cởi áo len, lược nhựa khi chải tóc thường chỉ xảy ra lúc trời hanh khô?

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Giúp vs ạ 1. Maxicorp were the only company which replied my letter. .................................................................................................................................................................. 2. Do you the man who is talking to my father ? .................................................................................................................................................................. 3. Applications which were sent after 23rd will not be considered. .................................................................................................................................................................. 4. We have a lot of exercises which we have to do tonight. .................................................................................................................................................................. 5. The equipment which belongs to the club is insured. .................................................................................................................................................................. 6. Meetings which are held every month are called monthly meetings. .................................................................................................................................................................. 7. The most excellent students who were rewarded the scholarship would have a two-week holiday in VungTau. .................................................................................................................................................................. 8. The man who is talking to John is from Korea. .................................................................................................................................................................. 9. The ideas which are presented in that book are interesting. ................................................................................................................................................................. 10. English has an alphabet that consists of 26 letters. .................................................................................................................................................................. 11. George is the last person who will be interviewed __________________________________________________________________ 12. The man who is sitting next to you is my uncle ___________________________________________________________________ 13. Do you know the boy who broke the windows last night ? _________________________________________________________ 14. This is the only student who finds the answer. __________________________________________________________________ 15. I was the only one who realized him. ___________________________________________________________________ 16. The man who is standing there is a clown. ...................................................................................................................................... 17. The student don’t know how to do exercise which were given by the teacher yesterday. ...................................................................................................................................... 18. The diagrams which were made by young Faraday were sent to Davy in 1982. ....................................................................................................................................... 19. The gentleman who lives next door to me is a well-known orator. .....................................................................................................................................