考博考试

根据网考网考试中心的统计分析，以下试题在2018/12/12日考博习题练习中，答错率较高，为：92%
【单选题】The chief function of unmailed advertising is ______.
A．to send sample products from door to door
B．to familiarize the customers with the products
C．to deliver the products directly to the retail stores
D．to send information about the products in quick ways
网考网参考答案：B，答错率：92%
网考网试题解析：
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