题目
题目
单项选择题

Question at position 1 Each time an ad is shown to a user is known as an impression.TrueFalse

选项
A.True
B.False
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标准答案
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思路分析
Here's the question restated: Question at position 1 Each time an ad is shown to a user is known as an impression. True or False Option 1: True. The term impression in advertising refers to a single instance of an......Login to view full explanation

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