On a scale that measures the intensity of a certain phonomenon, a reading of n+1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a reading of 3?
也是OG12里520页的114题： Guidebook writer：I have visited hotels throughout the country and have noticed that in those built before 1930 the quality.............on hotels built subsequently. 这题为什么选D呢？
