giúp mình Đốt cháy hoàn toàn 4,6 gam hợp chất hữu cơ A thu được 4,48 lít khí CO 2 (đktc) và 5,4 gam nước. Biết khối lương mol của hợp chất A là 46 gam. Hãy xác định công thức phân tử của A, viết công thức cấu tạo.

Choose the words which has different stress pattern from the others. 1. A. discuss B. gather C. perform D. attend 2. A. ticket B. costume C. event D. number 3. A. return B. happen C. differ D. visit 4. A. yourself B. thirteen C. abroad D. village Choose the best option to complete each sentence. Circle A, B, or C. 5. In the Samba Festival, people wear …….…… ,playing samba music and dancing. A. dresses B. costumes C. glasses D. googles 6. In many festivals, people …………… through streets singing and dancing. A. parade B. march C. run D. watch 7. The Burning Man is a …………… festival held at the end of August. A. music B. musical C. musician D. musicians 8. In the Thanksgiving Festival, family members and friends gather to have a ………… A. talk B. feast C. festival D. talkie 9. On the ................ occasions, people in the village wear traditional clothes. A. festival B. festive C. festivity D. festivals 10. …………. festival do you choose? – I choose Elephant Race Festival. A. What B. How C. Which D. When 11. It must be amazing …………………… elephants racing. A. see B. to see C. seeing D. saw 12. …………. do you like about La Tomatina? A. What B. Which C. When D. Why 13. Do you …………. anything about music festival called Burning Man? A. like B. know C. understand D. have 14. ……………….. do people do at Burning Festival? A. Why B. Which C. What D. How 15. …………………. often is Burning Festival held? – It’s held every year. A. Which B. When C. What D. How

19 gio 25 phut +6 gio 38 phut bang bao nhieu

lf it (rain) we(change) our plan

1, reading/ a/ or/ fairy tale/ a comic book? / Are 2, fist/ this/ is/ happened/ story? /What 3, intelligent. / I/ think/ she's 4, What/ favourite/ is/ story? / your 5, character/ Which/ best? / do/ like/ you 6, read/ I/ often/ short/ stories/ in/ free rime./ my 7, fairy / Why/ do/ like/ you/ reading / tales?

Complete the sentences,using However or Nevertheless: 1.The film didn't receive good reviews from critics.....,many peopel went to see it 2.They spent millions of dollars on making the film.....,it wasn't as success as expected 3.He isn't intelligent.....,he does his work well 4.I work hard all day.....,i am not tired 5.She is very rich.....,she isn't happy 6.She is in China.....,she speak English 7.All my plans are careful.....,there are a lot of wrong things 8.It was very cold.....,i didn't wear a coat 9.I was very tired.....,i couldn't sleep 10.They spent a huge amount of money on the film.....,the film didn't get the big success

Câu bị động làm sao em quên mất rồi...

Cho tam giác ABC vuông góc tại đỉnh A, đường cao AH. Từ H kẻ HM vuông góc với AC và trên tia HM lấy điểm E sao cho MH = EM. Kẻ HN vuông góc với AB và trên tai HN lấy điểm D sao cho NH =DN Chứng Minh ba điểm D,A,E thẳng hàng Giúp mik với

Giúp mk câu c nhé . Cảm ơn bạn nhiều !

Giải gấp giúp mình nhé Chỉ có 3 câu