购买决策在消费者购买活动中占有极其重要的关键性地位。_爱下问搜题

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问题判断题

购买决策在消费者购买活动中占有极其重要的关键性地位。

答案

参考答案：对

选择题

All these gifts must be mailed immediately _____ in time for Christmas.

A. in order to have received
B. in order to receive
C. so as to be received
D. so as to be receiving

填空题

所谓“阈值”就是空气中传播的物质的（），且在该浓度下长期工作生活的人们均无有害影响。