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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）
( ) All data transmitted over the Internet _______ small units of information called packets.
A.is used for
B.is added by
C.is divided by
D.is divided into
A.is used for
B.is added by
C.is divided by
D.is divided into
参考答案
