giúp tui với mn: Câu 1. Tên gọi và vị vẽ.trí các hình chiếu ở trên bản Câu 2. Bản vẽ chi tiết là gì ? Nêu trình tự đọc bản vẽ chi tiết, bản vẽ lắp. Câu 3. Các chú ý đảm bảo an toàn khi cưa, dũa Câu 4. Nêu công thức tính tỉ số truyền i - Trong truyền động ma sát – truyền động đai: - Trong truyền động ăn khớp Câu 5. Đĩa xích của xe đạp có 80 răng, đĩa líp có 40 răng. a/ Đĩa nào quay nhanh hơn. Tại sao? b/ Tỉ số truyền của cơ cấu? Khi đĩa xích quay 10 vòng thì đĩa líp quay bao nhiêu vòng? :'<

(x-3/4)^2 + (x-3/4)(x-1/2) = 0 giúp mình giải phương trình nhé

Giúp mình giải bài 19 nha máy bạn

tìm giá trị của k sao cho c:phương trình 2(2x+1)+18=3(x+2)(2x+k) có nghiệmx=1

What do you like doing ? Dịch và trả lời hộ e. Mọi người để cho haichiemkt5A trả lời câu hỏi của mk nhé !

11. You need an English – Vietnamese dictionary, ____________? 12. You have never watched any films made in Bollywood, ____________? 13. You’re waiting for your letter, ____________? 14. We had a good time, ____________? 15. Some people commit crime when they have no money and no food, ____________? 16. You enjoy living in a peaceful neighbourhood, ____________? 17. It’s hot today, ____________? 18. The factory will bring more jobs to local people, ____________? 19. You forgot to bring your textbooks this morning, ____________? 20. The idea can change the solution, ____________?

. Put a tag question at the end of the sentences 1. In big cities, life can become very difficult and unpleasant, ____________? 2. The world will soon become overpopulated, ____________? 3. You haven’t gone to Rio de Janeiro, ____________? 4. They didn’t like the film, ____________? 5. Jeju Island looks very peaceful, ____________? 6. We don’t have to go yet, ____________? 7. You don’t like pollution, ____________? 8. I think a megacity is a very large city with big population, ____________? 9. You won’t tell anyone, ____________? 10. The number of English speakers is increasing very quickly, ____________?

5. Change the following statements into tag questions. 1. People speak English all over the world. 2. Everything is ready. 3. Someone called me last night. 4. She's been studying a lot recently. 5. He hasn't been running in this weather. 6. He went to the party last night. 7. You never come on time. 8. Well, I couldn't help it. 9. You remembered to feed the cat. 10. Let's play tennis.

6. I got to work in half an hour yesterday. => It took .......................................................................................................... 7. My mother doesn't like coffee and tea. => My mother likes neither.................................................................................... 8. You shouldn't eat too much candy. => You'd........................................................................................................... 9. Lan is more intelligent than her sister. Lan’s sister isn’t ......................................................................................... 10. He looks after the sick people. He takes ........................................................................................................ 11. Do you enjoy listening to music? Are you interested .................................................................? 12. We have a two - month summer vacation. Our summer vacation lasts ................................................................ 13. Vietnamese students have fewer vacations than American ones. American students ........................................................................................ 14. It takes me about two hours each day to do my homework. I spend ........................................................................................................ 15. Life in the past is not as comfortable as life nowadays. _ Life nowadays __________________________________________________ 16. You shouldn’t forget to write to your parents. _ You’d _______________________________________________________ 17. Trung didn't go to school last Saturday. _Trung was ____________________________________________________ 18. Our summer vacation lasts three months. _ We have a __________________________________________________ 19. These naughty students like computer games better than school lessons. _ These naughty students prefer ____________________________________ 20. Learning English is very difficult for my brother. _ It is __________________________________________________________

1. You’re the best guitarist in the school. No one _________________________________________________________________. 2. He didn’t remember anything about it, and I didn’t, either. He forgot________________________________________________________________. 3. School uniforms don’t have to be worn at all times. Students ________________________________________________________________. 4. Don’t fry food which can be grilled. Avoid__________________________________________________________________. 5. With luck, she will win the cookery competition. If _____________________________________________________________________. Finish each of the following sentences in such a way that it is as similar as possible in meaning to the sentence printed before it 1 Listening to music is more interesting than watching TV. => I prefer........................................................................................................ 2. It isn't important for you to finish the work today. => You don't...................................................................................................... 3. How much is this dictionary? => What ........................................................................................................? 4. How heavy is the chicken? => What...........................................................................................................? 5. Mr. Trung and Mrs. Trung type quickly . => Mr. Trung and Mrs. Trung..................................................................................