典型的嵌入式系统存储器层次结构示意图如下所示，存储层次由低到高依次是辅助存储器、主存储器、高速缓存Cache、寄存器，以下叙述中错误的是()
- A.层次越高读写速度越快
- B.层次越高存储容量越大
- C.高层存储器可以被看作低层存储器的缓存
- D.各级存储层次之间存储容量和读写速度呈反比
正确答案及解析
正确答案
解析
存储体系，从层次低到层次高，价格越来越贵，容量越来越小，速度越来越快。cache-主存以及主存-辅存是两级存储结构。
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