主存储器和CPU之间增加高速缓冲存储器的目的是( )。
A.解决CPU和主存之间的速度匹配问题
B.扩大主存储器的容量
C.扩大CPU中通用寄存器的数量
D.既扩大主存容量又扩大CPU通用寄存器数量
正确答案是A
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