Countrywide level and APR averages: Exhibited as every day and weekly averages, these costs and APRs are mostly collected with the 5 biggest banking companies and thrifts throughout numerous markets during the U.S. 也可以这样理解，同一种颜色到底有多少种灰阶（即，同一种颜色有不同亮度） 对比度：最高亮度和最低亮度的比值，当增加对比度会让亮的地方会更亮，暗的地方会更暗，让明暗反差增强，对... https://dominicklstri.blogrelation.com/42927384/details-fiction-and-30-loan