Giả sử khi ở trong ruột người, vi khuẩn tả có thời gian thế hệ là 30 phút. Ban đầu người đó ăn phải thức ăn có chứa 200 tế bào gây bệnh tả. hỏi sau 6 giờ số tế bào vi khuẩn tả trong ruột người này là bao nhiêu?

hệ bài tiết nước tiểu gồm những cơ quan nào, hệ bài tiết đóng vai trò quan trọng như thế nào với cơ thể sống

Làm hộ mình với không cần làm đoạn văn chỉ cần trả lời các câu hỏi

8. All of us have to obey…………………strictly. A. traffic rules B. traffic C. traffic jam D. regular 9. We were……………….in the largest film of that director. A. interesting B. satisfying C. interested D. satisfied 10. Newton ................. scientific books when being a boy. A. used to read B. has read C. had read D. bad been reading 11. The play was so boring. ________, An saw it from beginning to end. A. Therefore B. Despite C. However D. Although 12. At 7.00 tomorrow, you ________ to school. A. cycle B. will cycle C. will be cycling D. will be cycled 13. Solar energy _________ by many countries in the world in the future. A. use B. will use C. will be using D. will be used 14. There aren't many people in this town, ____________? A. are they B. are there C. is there D. aren't there IV. Choose the word that has the SAME meaning to the underlined word. 15. Jack was so fond of the film that he saw it from beginning to end. A. interested of B. keen in C. keen on D. bored with 16. They often choose faster cars with bigger engines. A. slow B. more slowly C. slowly D. slower V. Choose the word that has the OPPOSITE meaning to the underlined word. 17. It's really difficult to ride a bicycle up the hill. A. interested B. keen C. different D. simple 18. What will happen to us when the non-renewable energy sources run out? A. renewable B. renew C. new D. alternative VI. Find the mistakes in the following sentences: 19. There used (A) to be less (B ) unemployed people in (C ) this city five (D ) years ago. 20. Solar (A) panels are installed (B ) on the roof of (C ) our house (D) next week. VII.Choose the best response to each of the following sentences. 21. - " How far is it from your house to school?" - "....................." A. Two kilometers B. Two kilos C. Two hours D. Two cups 22. Alice: “ Would you like to go to the cinema this weekend? “ Bob: ………………….. A. I don’t care B. OK. You did it C. Great. I can’t wait. D. Sorry, I don’t like. C. READING VIII. Read the following passage and choose the correct answer for each blank. Cartoon is a favorite subject of all kids around the world. Especially, Tom and Jerry film impresses me with its funny detail and interesting action. The film is (23)_____ a cat and a mouse, they (24)_____ each other and always find many pranks to play. The two main characters seem to live in a house with different owners. Tom is much bigger than Jerry but he is quite stupid and aggressive. On the contrary, Jerry is (25)_______ and flexible as he always knows how to get away with Tom’s making trouble. Besides, there are other actors such as a dog, a yellow bird, a seal or even a cute baby. (26)-------, after many tricks, they come back to love and forgive other’s mistake for a (27)____ life. 23. A. in B. at C. about D. on 24. A. hate B. talk C. work D. help 25. A. slow B. lazy C. stupid D. smart 26.A. Final B. Finally C.On D. In 27. A. hardest B. better C. worst D. simplier tuy ít điểm nhưng hãy giúp mình

đun nước trong ấm nhôm nước nóng lên và sôi là do

Em hãy nêu lên những đóng góp của Nguyễn Trãi ?

nhanh nha đang thi ai đúng cho5 sao

Một hòn bi có khối lượng 0,12g được ném thẳng đứng lên cao với vận tốc 10m/s từ độ cao 1,4m so với mặt đất . Tính động năng, thế năng, cơ năng của vật tại lúc ném ?

Giải thích hiện tượng mưa giông sấm chớp

Có thể giúp câu này được không 😥