Nguyet Minh's Profile

27. Your knowledge of computer spreadsheets will be a big seats ........................... in this job.
28. They design ........................... the contract, so it’s a bit late to change their minds now.
29. The trouble is that you often laid ........................... the wrong number.
30. Do I detect a thin ........................... of jealousy in your tone?
31. He was a man of very strong ladies ..........................., but sadly he often failed to live up
to them.
32. Now I know that you idle ........................... about everything. I feel used and deceived. I
hate you.
33. She remained interested in politics. After she became blind, she read everything in liberal
........................... she could lay her hands on.
34. Which would you prefer - the scenic outer ..........................., or the more direct one taking
the inner ring-road?
35. She wore a pretty cotton trouser suit, pale yellow with thin black priests ...........................
36. He was angry that we failed to discuss the wide anger ........................... of issues that he
had raised in his report.
37. I want to study remain ........................... biology at university, because I love the sea.
38. It’s a sort of theme restaurant. There’s poetry on the walls, and the menu is written in serve
...........................
39. This analysis shows up reveals ........................... problems with our accounting system
which will have to be sorted out.

40. Claudia spider ........................... herself on her ability to handle insects and other creepy-
crawlies without any fear whatsoever.

II. Choose the correct collocation and the correct preposition to complete these expression.
41. I can’t understand people who deal with / treat animals badly.
42. Most birds have / lay their eggs in spring.
43. Rabbits form / make good pets.
44. I was bitten / cut on the leg when I was attacked by a large dog.
45. Our cat had / made four kittens last week.
46. It’s a climbing plant which makes / produces large red flowers.
47. I’ll just go into the garden and pick / pull some flowers.
48. The leaves are beginning to go off / fall off the trees.
49. I don’t think I can climb over / up that fence. It’s too high

50. I think that testing drugs on / with animals is cruel and should be banned.
51. Please keep away from / off the grass.
52. Farmers spray their crops with / by pesticides to stop insects eating them.
53. I’ll set my dog at / on you if you come any closer.
54. The main streets of the city are lined in / with tree

Cho một bình cách nhiệt chứa đầy nước ở nhiệt độ t0=90 độ C. Thả một  viên nươc đá có khối lượng m=250g ở nhiệt độ 0 độ C vào bình thì có khối lượng nước bằng m tràn ra khỏi bình. sau khi can bằng nhiêt thì nhiệt độ nước trg bình la t1=56 độ C. Cho nhiệt dung riêng của nước là c=4200J/kgK , nhiệt lượng mà mỗi kg nước đá cần thu vào để tan chảy hoàn toàn ở 0 độ C là 336000J. coi rằng nước đá chỉ trao đổi nhiêt với phần nước còn lại trong binh

a) tìm khối lượng nước còn lại trong binh

b)lần lượt thả tiếp từng viên đá như trên vào bình, viên tiếp theo thả sau khi nước trong bình đã cân bằng nhiêt. Tìm biểu thức nhiệt dộ cân bằng trong binh sau khi thả vào bình viên đá  thứ n mà nó bị tan hết

c) hỏi từ viên thứ bn thì nó không tan hết