A、Because he wants to collect information about the shoppers. B、Because people in the shopping mall have time to answer his ques

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问题  

选项 A、Because he wants to collect information about the shoppers.
B、Because people in the shopping mall have time to answer his questions.
C、Because people in the shopping mall are more experienced than students.
D、Because he can find various respondents in the shopping mall.

答案D

解析
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