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.
A.which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago B.which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters C.and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters D.amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago(D) E.amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters
正确答案为D没有问题 但是请问下这个down from nearly three-quaters a decade ago到底应该怎么理解呢?是说下降了四分之三吗?想了半天想不明白 谢谢啦~