在字长为16位、32 位、 64 位或 128 位的计算机中，字长为（ ）位的计算机数据运算精度最高。
- A.16
- B.32
- C.64
- D.128
正确答案及解析
正确答案
解析
本题考查考生计算机性能方面的基础知识。字长是计算机运算部件一次能同时处理的二进制数据的位数，字长越长，数据的运算精度也就越高，计算机的处理能力就越强，因此本题选D。
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