... 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...
... 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...
...
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...
... 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...
... opinion/ election/ fair
A. My opinion was fair about the election.
B. In my opinion, I think the election was fair.
C. According to my opinion, the election was fair.
D. In my opinion, the election ... the air-conditioner. This sentence means: ______.
A. Do you mind if I turn off the air- conditioner?
B. Do you have someone turn off the air-conditioner?
C. Do you have the air-conditioner...
... 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...
... 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...
... 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...