tìm 2 số biết 40% số thứ nhất bằng 1\4 số thứ 2 .tổng của 2 số là 13\23

Tìm lỗi sai và sửa lại 1Vietnamese students have less vacations than American students. 2. What’s your America’s penpal’s name? 3. Doctor Lai looked at Minh and told him don’t worry. 4. How often is it from your house to your school? 5.My younger sister feels sick . She ate too many ice- cream yesterday. 6.What is your day of birth?- It’s on May 20th. 7.Would you like to have a dinner with me tonight? 8.How many are the English books? – I think they are two hundred thousand dong. 9.The boys in our class like Ronando very much because he plays soccer very good. 10.How are you today? – Not badly, Thank you

Em hãy cho biết chất dinh dưỡng nào trong thực phẩm dễ bộ hao tổn nhiều trong quá trình chế biến? Ko chép mạng

giải giúp mk câu 6 bằng tự luận ạ

hộ nha!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Exercise 1. Circle the word which has different sound in the part underlined. 1. A. laughed B. washed C. danced D. played 2. A. beds B. dogs C. porters D. books 3. A. pictures B. watches C. buses D. brushes 4. A. homework B. mother C. open D. judo 5. A. rather B. them C. neither D. think 6. A. fun B. sun C. surf D. cut 7. A. call B. land C. fall D. ball 8. A. although B. laugh C. paragraph D. enough 9. A. comedy B. letter C. princess D. cinema 10. A. high B. sight C. this D. find 11. A. stopped B. agreed C. listened D. cleaned 12. A. meat B. seat C. great D. mean

Dẫn một anken A qua bình đựng 250 ml dung dịch brom 0,2M thì thấy dung dịch brom bị mất màu hoàn toàn và khối lượng bình tăng 2,8 gam. Tìm CTPT của anken A trên.

Quangcuong giúp em với ạ Cho 200ml dung dịch HCl 0,5M vào 300ml dung dịch NaOH 0,2M và nhúng quỳ tím. Qùy tím có màu gì? Tính C% dung dịch thu được. ( Biết dHCl= 1,12g/ ml; dNaOH= 1,02g/ml) GIẢI CHI TIẾT NHA

Nêu những nguyên nhân gây ngộ độc thực phẩm? Nêu các biện pháp phòng tránh ngộ độc thực phẩm? Câu 4. (1 điểm ) Muốn đảm bảo an toàn thực phẩm, cần lưu ý những yếu tố nào? Ko chép mạng

I.Supply the correct form of adverbs. 1.She speaks English ( fluent)________________now than last year. 2. She can’t stay (long) ________________than 30 minutes 3.She smiled ( happy)_____________than before. 4. Lan sings ( sweet ) ………………..than Hoa 5.Could you write ( clear)_____________? 6.Planes can fly ( high) ______________than birds. 7.He had an accident last year. Now, he drives ( careful)______________than before. 8.Jim can run ( fast)_____________than John. 9.Our team played (bad)__________of all. 10.He worked ( hard)______________than ever before. II.Choose the best answer. 1. Children often learn very ……………….. things around them. A. quickly B. quicker C. quickest              D. quick 2. She can not sing …………… but she can play the piano beautifully A. good B. best C. goodly                 D. well 3. He tried very ……….. but still failled the exam. A. hardly B. hard C. harder                  D. hardest 4. He feels ……….. than last year because his study results are ………………… A. happy/ good B. happier/ gooder C. more happy/more good   D. happier/better 5. Phuong can speak English ……….. than Minh. A. more fluent B. fluently C. fluent            D. more fluently 6. Cinderrella danced …………… than  any other girls at the ball. A. more graceful      B. gracefuler            C. gracefully            D. more gracefully 7. Rabbits run……………… than tortoises. A. fast B. fastly                C. fastlier          D. faster 8. She can pronounce English words …………. than she could last term. A. correctlier B . more correct C. more correctly      D. correcter 9. In this class , the students are talking …………… than the teacher. A. loudly B. more loud C. loudlier             D. louder. 10. I can learn a subject …………… if I like it and ………… if I don’t like it. A.good/ bad B. better/ worse C. better/ badlier        D. gooder /worse