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题目内容
（郑州工业应用技术学院计算机专业英语）
Most operating system have a standard set of _________ to handle the processing of all input and output instructions.
A.spreadsheet
B.control instructions
C. I/O operation
D. data table
A.spreadsheet
B.control instructions
C. I/O operation
D. data table
参考答案
