trình bày cấu tạo của sợi đốt(dây tóc) của đèn sợi đốt?Chức năng của sợi đốt là gì?Nguyên lí làm việc và đặc điểm của đèn sợi đốt?

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2. This multi-sport event is an occasion when friendship and _____ are built and promoted. A. knowledge B. solidarity C. effort D. enthusiasm 3. The Vietnamese participants always take part ______ sports events with great enthusiasm. A. in B. on C. at D. to 4. The Vietnamese _____ took part in the 14 th Asian Games with great enthusiasm. A. participating B.participate C. participants D. participation 5. The Asian Games are held for the purpose of developing _____ knowledge and friendship within Asia. A. intercultural B. cultural C. culturally D. culture 6. In this multi-sport event, young people from all over Asia gather together to _______. A. competitive B. competitor C. competition D. compete 7. Vietnam won 3 gold _____________ in the 15th Asian Games. A. degrees B. medals C. awards D. boards 8. The Asian Games _____________ every four years. A. takes place B. are presented C. are happened D. presents 9. My brother enjoys _____________ sports such as swimming, water skiing. A. aquatics B. aquarium C. aquatic D. aquarist 10.__________ from several countries competed in many Asian Games A. Spectators B. Athletes C. Audience D. Viewers 11. The Olympic Games is one of the biggest sporting _____________ all over the world . A. problems B. athletes C. cultures D. events 12. Korea was chosen to be__________________ of the 2002 Asian Games. A. athlete B. host C. participant D. guest 13. ________can help an athlete to improve he strength of muscles and the appearance of the body A. Shooting B. Table tennis C. Weightlifting D. Playing chess 14. ______________is the sport of fighting with long thin swords A. Wrestling B. Fencing C. Hockey D. Basketball 15. ________ __is a sport in which two competitors fight by hitting each other with their hands A. Football B. Fencing C. Wrestling D. Boxing