2. 外语
  3. Publicity can cover large numbers of audiences in a short time and its costs are lower than______. Publicity is limited, when a

Publicity can cover large numbers of audiences in a short time and its costs are lower than______. Publicity is limited, when a

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问题 Publicity can cover large numbers of audiences in a short time and its costs are lower than______.
Publicity is limited, when a company fails to control the activities of a certain______.
选项
答案medium
解析 由题于关键词limited和fails to control定位到第三段第一、二句。Publicity also has some significant limitations．A firm has little control over, messages，their timing，their placement，or their coverage by a given medium．宣传也有明显的局限。公司不能控制特定媒体的信息、时段、安排和覆盖面。
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大学英语六级

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