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【单选题】
CPU 是构成微型计算机的最重要部件,下列关于Pentium 4的叙述中,错误的是()
A.
Pentium 4除运算器、控制器和寄存器之外,还包括Cache存储器
B.
Pentium 4运算器中有多个运算部件
C.
一台计算机能够执行的指令集完全由该机所安装CPU决定
D.
Pentium 4的主频速度提高1倍,PC机的处理速度也相应提高1倍
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