试题与答案

媒介的可选取性等于()。 A.(效果+效率)/成本 B.(成本+效率)/效果 C.(

题型:单项选择题

题目:

媒介的可选取性等于()。

A.(效果+效率)/成本

B.(成本+效率)/效果

C.(效果+速度)/成本

D.(成本+速度)/效应

E.(效应+速度)/成本

答案:

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