B1: Một người đi xe đạp xuống một đoạn đường dốc dài 120m hết 30s. Khi hết dốc, xe lăn tiếp một quãng dường nằm ngang dài 60m trong 24s rồi dừng lại. Tính vận tốc trung bình của xe trên quãng đường dốc, trên quãng dường nằm ngang và trên cà hai quãng đường. B2:Một đoàn tàu chuyển động 5 giờ với vận tốc trung bình 30km/h. Tính quãng đường đoàn tàu đi được.

Giải hộ bác hhhhh bác chuyển sang lời dẫn trực tiếp hộ bác

Giúp mình câu a,c,d với mình cảm ơn

143. The expenditure of the office remained stable. The profit rose by 25%. A. The profit rose by 25% although the stabilization of the office's expenditure. B. The profit rose by 25% as a result of the stabilization of the office's expenditure. C. The profit rose by 25% despite the stabilization of the office's expenditure. D. The profit rose by 25% owing to the stabilization of the office's expenditure. 144. The rapid urbanization led to many serious problems. One of those is the growth of slums. A. The rapid urbanization is the cause of many serious problems such as the growth of slums. B. The rapid urbanization is consequent of many serious problems like the growth of slums. C. The rapid urbanization is created by many serious problems such as the growth of slums. D. The rapid urbanization is resulted by many serious problems like the growth of slums.

giúp mình đi ạ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Viết 1 đoạn văn ngắn hoặc một bài văn ngắn để chia sẻ với mẹ về 1 kỉ niệm đáng nhớ nhất của bản thân (ko chép mạng nha) mình vote 5*****

Hợp chất X gồm 3 nguyên tử Fe và 4 nguyên tử O. Hợp chất X được viết như sau: A.FeO B. 4Fe3O C Fe4O3 D. Fe3O4

yesterday/we/not go/words/we/be/busy

141. Increasing urbanization has led to problems. Cities are centers of civilization and culture. A. Although increasing urbanization has led to problems, but cities are centers of civilization and culture. B. Despite increasing urbanization has led to problems, but cities are centers of civilization and culture. C. In spite of increasing urbanization has led to problems, yet cities are centers of civilization and culture. D. Though increasing urbanization has led to problems, cities are centers of civilization and culture. 142. In 1960, the rate of urbanization in Indonesia was about 17%. In 1969, it was about 20%. A. The rate of urbanization in Indonesia increased by 3% in 1969 followed by a slight fall to 17% in 1960. B. The rate of urbanization in Indonesia rose to 20% before falling to 17% in the period of nine years from 1960. C. In 1960, the rate of urbanization in Indonesia was about 17% after falling slightly by 3% in the period of nine years. D. In 1960, the rate of urbanization in Indonesia was about 17% followed by a slight increase of 3% in 1969.

1. My art class doesn’t finish _____ 10.30. a. on b. until c. in d. of 2. I want to go dance show in HCM city _____ Sunday morning. a. at b. under c. of d. on 3. Students can study in a ................. after high school. a. vote b. alone c. college d. century 4. Joe Biden won more .................than President Donal Trump in the 2020 election. a. colleges b. votes c. housework d. century 5. When you are unhappy, you only want to be ................. a. century b. college c. alone d. vote 6. We are living in the 21th ....................... a. college b. century c. vote d. housework 7. Do you think you’ll get ......................? a. marry b. marrying c. marriage d. married 8. I .................... the ball to my friend. a. wear b. throw c. carry d. garlic 9. Guitar is a .....................instrument. a. wind b. stringed c. percussion d. music 10.A flute is played by .............. air into a hole. a. throwing b. blowing c. wedding d. hitting 11. What did people ........................... at the bride and groom? a. bride b. throw c.garlic d. carry 12. Brides usually ............................. a white dress on the wedding day. a. wore b. to wear c. wear d. wearing 13. Violins, pianos, guitars are musical ......................... a. players b. bands c. percussion d. instruments 14. Women had to .................. a lots of jobs. a. do b. does c. doing d. to do 15.What else did women ..................... to do? a. have b. has c. having d. had 16. They also couldn’t ...................... a husband. a. choice b. choose c. choosing d. to choose 17. Women had to stop working when they .................. married. a. got b. get c. to get d. getting 18. A piano is ..................... with fingers. a. playing b. played c. play d. to play 19. The violin is played ........................ a bow. a. by b. on c. with d. of 20. Sao Truc is made of ........................ a. hitting b. bow c. metal d. bamboo Bạn nào làm đúng mình sẽ cho 5 sao và ctlhn.