Răspuns:
47. C
48. D
49. C
50. B
51. D
52. A
53. C
54. D
55. C
56. C
Explicație:
47. Sentence three and four, beginning with 'Think of dopamine...'
48. The bottom part of paragraph D, 'Paul Salopek...'
49. The second part of paragraph C, beginning with 'It works like this...'
50. Last but one sentence of paragraph B goes 'we don't all have the same...'
51. The beginning of the paragraph uses the example of driving a car...
52. The second part of this paragraph gives examples of what a risk-taker could potentially loose...
53. The example of 'risk-takers' and 'thrill-seekers'
54. The very last sentence of the paragraph has the answer
55. The last sentence of the paragraph gives the examples
56. In the middle, the chemical reaction is associated with adrenaline injection
