一起答
单选

以下(16)不是分时操作系统的特征。

  • A.系统可靠性高
  • B.用户与系统能进行人机对话
  • C.用户在短时间内可得到系统的及时回答
  • D.多用户能同时在各自终端上使用同一CPU
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