on a scale that measures the intensity of a certain phenomenon, 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 mnay times as great as the intensity corresponding to a reading of 3?
选项:5;50;10的5次方;5的10次方;8的10此方-3的10此方。