答案：

26. G)exposure

27. L)levels

28. F)enroll

29. O)participated

30. C)championships

31. E) developing

32. M)local

33. N)operates

34. I)feeding

35. B)career

36 H)to be curious, we need to realize first of all that there are many things we don' t know.

37. D). according to leslie, curiosity is essential to one s success.

38. O)we should feel happy when we pursue knowledge for knowledge s sake

39 M)political leaders' lack of curiosity will result in bad consequences.

40. B) there are often accusations about.politicians and the media s lack of curiosity to find out the truth

41. L)the less curious a child is , the less knowledge the child may turn out to have.

42. k) it is widely accepted that academic accomplishment lies in both intelligence and diligence.

43. J) a bookshop as curiosity eads us can be a good way to entertain ourselves.

44. G)both the rise of the internet and reduced appetite for literary fiction contribute to people' s declining curiosity.

45. F)mankind wouldn' t be so innovative without curiosity.

46-50：BADCA

51-55:CCBDD

46. what do velieve about aging ?

b)they just cannot do anything about It

47. how do many scientists view aging now?

a) might be prevented and treated

48. what does alex zhavoronkov think of describing aging as a disease ?

d)it will motivate doctors and pharmacists to find ways to treat aging.

49. what do we learn about the medical community?

c)they can contribute to people's health only to a limited extend, 

50. what does professor leonard hayflick believe

a)the human lifespan cannot be pro-longed

51. what do we learn about applicants postdoctoral positions in geosciences?

c)more males than females are likely to get outstanding letters of recommen dafion

52. what do studies about men and women in scientific research show?

C)Men are believed to be better able to excel in stem disciplines

53. what do the studies find about the recommendation letters for women appli cants?

b). they contain nothing that distin guishes the application.

54. what did dutt and her colleagues do with the more than 1, 200 letters of recommendation

d) they deleted all information about gender.

55. what does dutt aim to do with her study?

d) start a public discussion on how to raise women's status in academic circles.

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