De HSG 12 (co Key)

... experience C. occasion D. event 12. - Is the lift still working?. - No , it’s ________ Let’s use the stairs. A. out of work B. impossible C. in danger D. out of order 13. It’s wonderful here tonight ! ... since D. already 7 A. thought B. questioned C. wondered D. regarded 8 A. dissolving B. liquefying C. melting D. spreading 9 A. separated B. divided C. distributed D. shared 10 A. soft B. li...

Ngày tải lên: 22/10/2013, 11:11

... permission of the holders of the copyrights are breaking the law. 11.It may be argued that modern presidents have far great responsibilities than their predecessors did. 12. If drivers obeyed ... _________ of these programmes is to develop and broaden the study experience, so that students do not have to (10) __________ only on the printed material they are sent. Students are (11) __________...

Ngày tải lên: 22/10/2013, 11:11

... about the incident. 4. Provided you fill the car up with petrol, you can borrow it. 5. It was while he was on holiday in Wales that he wrote that book. 6. Nothing has been decided yet. 7. Little ... being made- went 3. was 7. cuts 11. studied – have been 4. didn’t think – would run 8. to have been forgotten 12. is Question :III. 1. A 2. B 3. C 4. A 5. C 6. A 7. C 8. D 9. C 10. D 11. B 12. D...

Ngày tải lên: 29/07/2013, 01:26

... số: 12 )1()( + += n xxf = 121 2 12 44 12 33 12 22 12 1 12 0 12 ++ ++++++ ++++++ nn nnnnnn xCxCxCxCxCC . Ta có n xnxf 2 )1) (12( )(' ++= = = nn nnnnn xCnxCxCxCC 212 12 34 12 23 12 2 12 1 12 )12( 432 ... +++++ ++++++ . Do đó =+= 12) 2(' nf = 12 12 24 12 33 12 22 12 1 12 2 )12( 2.42.32.2 + +++++ ++++ n n n nnnn CnCCCC Suy ra: 20092 )12( 2.42.32.2 12...

Ngày tải lên: 07/06/2013, 01:26

... judge a governments success, we have to decide the criteria, such as unemployment, defense, or taxation. a. We cannot decide on criteria on unemployment, defense and taxation unless we have judges ... judge a governments success, we have to decide the criteria, such as unemployment, defense, or taxation. a. We cannot decide on criteria on unemployment, defense and taxation unless we have judg...

Ngày tải lên: 19/08/2013, 12:10

... the twins and my older brother, Ted. Ted is ten years older than me and the twins- they are girls- are two years younger than me. We had a good childhood out in the countryside. My parents were ... convenient B. comprehension C. environment D. pollution 5. A. remember B. questions C. accept D. decide B. Language.(2.5 points) Choose the best answer from A, B, C or D 1. Books are still a chea...

Ngày tải lên: 28/10/2013, 16:11

... B. products C. produce D. imports 41. A. considered B. regarded C. known D. worked 42. A. dependent B. reliable C. dependable D. command 43. A. details B. parts C. sections D. gadgets 44. A. ... B. products C. produce D. imports 41. A. considered B. regarded C. known D. worked 42. A. dependent B. reliable C. dependable D. command 43. A. details B. parts C. sections D. gadgets 44. A. ....

Ngày tải lên: 02/12/2013, 12:11

... Y → Y m+ + me O 2 + 4e → 2O – 2 2H + + 2e → H 2 Theo bài ta có: 2 28, 4 15,6 12, 8( ) O m g= − = => 2 12, 8 0,4( ) 32 O n mol= = ( ) ( )e cho e nhan n n= ∑ ∑ => 2 2 . . 4 2 O H a n b ... m(g) m(g) => 12x + y = 9y => x:y = 2:3 => công thức thực nghiệm của A (C 2 H 3 ) n 150 < M A < 170 => 5,56 < n < 6,29 => n = 6 Công thức phân tử của A: C 12 H 18 2)...

Ngày tải lên: 15/06/2013, 01:26

... …measure them.) 19. A country can not be prosperous if it is not quite independent. → Only…( when it is quite independent can a country be prosperous . 20. I didn’t have enough time to visit ... they are very immense. → The distances… 19. A country can not be prosperous if it is not quite independent. → Only… 20. I didn’t have enough time to visit the town properly. → The time I had… 21. ......

Ngày tải lên: 26/06/2013, 01:25

... phân tử bằng 127 đ.v.C, chứa 75,60% C, 13,38% H theo khối lượng. Coniin làmxanh quỳ tím ẩm, không làm mất màu dung dòch Br 2 /CCl 4 cũng không làm mất màu dung dòch thuốc tím. Khi dehidro hoá ... TẠO KỲ THI HỌC SINH GIỎI VÒNG TỈNH LÂM ĐỒNG Năm học 2000 - 2001 Môn thi: HOÁ HỌC Ngày thi: 20 -12 - 2000 Thời gian làm bài: 180 phút Bài I 1. Viết công thức cấu tạo các chất sau: a. cis-2-mêty...

Ngày tải lên: 05/07/2013, 01:25