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当前学科：第八章社会工作研究
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社会工作专业的学生小梦尝试使用问卷调查方法做一项关于朋友圈点赞的调查，在她的问卷中，应该包括的内容是（）。
A . 标题
B . 指导语
C . 封面信
D . 资料分析方法
E . 问题和答案
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