OG 上PS 99题: 请朋友们帮我解释一下,实在看不懂,在讲什么? 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 10^5 (就是10的5次方的意思,不知道键盘上这样打对不?大家将就的看看吧~~) D 5^10 E 8^10- 3^10 还有,在OG的解释中,10^8-10^3=10^5 对吗? 10^8=1000000000 减去10000怎么会是1000000呢?是不是OG上算错了?还是我数学基础没学好? 哪位大虾帮忙解释一下?感激不尽........ |