问题
单项选择题
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 many times as great as the intensity corresponding to a reading of 3 ？（）
A．5
B．50
C．105
D．510
E．810-310
答案
参考答案：C
解析：
由n+1所对应的强度是n的10倍可推知8所对应的强度是3所对应的强度的105倍，