For the first time in the modern era, non-Hispanic Whites are officially a minority in California , which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago.
D amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago(D) 我想问这道题 amounting... & down from 是一组平行对吧?那中间不用and作为连词对吗?