On thi DH-CD (phan3)

... 4, nhóm IIA Câu 36: Trong hợp chất ion XY (X là kim loại, Y là phi kim), số electron của cation bằng số electron của anion và tổng số electron trong XY là 20. Biết trong mọi hợp chất, Y chỉ ... 18 8 O . Cacbon có 2 đồng vị là 12 6 C ; 13 6 C . Số phân tử khí cacbonic khác nhau có thể được tạo thành là A. 12. B. 6. C. 5. D. 1. Câu 6:Tổng số electron trong ion XY 4 2- ... ga...

Ngày tải lên: 11/11/2013, 12:11

... naturally. 37. Unless you don’t take my advice, you won’t be successful in your future career. 38.I am surprising at how much he smokes; I’m not used to it. 39. Jack London is known as one of the great ... The General Certificate Of Secondary Education Exam Choose the letter (A, B, C, or D) that corresponds to the correct answer. 1. Could you me ten pounds untill next Monday? A. provide B. bo...

Ngày tải lên: 29/11/2013, 14:11

... hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that. Most people must work hard on their lessons to learn another language. E Many ... __________. A. talking with the film stars B. hearing the language in this office C. working hard on their lessons D. watching videos only 5. Many boys and girls learn English bec...

Ngày tải lên: 29/11/2013, 17:11

... argurment A. attention B. notion C. intention D. attraction 7. Buckingham Palace is a major tourist ………… in London A. attract B. attraction C. attractive D. attractiveness 8. Some people think it is ... environment C. biodiversity D. habitat 19. The primary causes of species extinction are habitat destruction, commercial ……… and pollution. A. chance B. damage C. production D. exploitation 20...

Ngày tải lên: 04/12/2013, 02:11

... argurment A. attention B. notion C. intention D. attraction 7. Buckingham Palace is a major tourist ………… in London A. attract B. attraction C. attractive D. attractiveness 8. Some people think it is ... environment C. biodiversity D. habitat 19. The primary causes of species extinction are habitat destruction, commercial ……… and pollution. A. chance B. damage C. production D. exploitation 20...

Ngày tải lên: 04/12/2013, 04:12

... argurment A. attention B. notion C. intention D. attraction 7. Buckingham Palace is a major tourist ………… in London A. attract B. attraction C. attractive D. attractiveness 8. Some people think it is ... became the seventh ……… of the Association of South East Asian Nations in A. opponent B. sponsor C. member D. colleague 58. ASEAN has a big population and a region of ……… cultures A. authentic...

Ngày tải lên: 04/12/2013, 04:12

... argurment A. attention B. notion C. intention D. attraction 7. Buckingham Palace is a major tourist ………… in London A. attract B. attraction C. attractive D. attractiveness 8. Some people think it is ... environment C. biodiversity D. habitat 19. The primary causes of species extinction are habitat destruction, commercial ……… and pollution. A. chance B. damage C. production D. exploitation 20...

Ngày tải lên: 04/12/2013, 08:11