The OSI(66)model, sometimes also called ISO or 7 layers reference model for communication, has been developed by the Internation

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问题 The OSI(66)model, sometimes also called ISO or 7 layers reference model for communication, has been developed by the International Standards Organization in early 1980’s.

选项 A、referent
B、reference
C、referance
D、refering

答案B

解析 OSI参考模型,有时也称做ISO或者7层通信参考模型,是在20世纪80年代初由国际标准化组织所认定的。
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