A、<span style="font-family: 宋体;">灵活性强</span><span style="font-family: 'Times New Roman';"> </span><span style="font-family: 宋体;"></span>
B、<span style="font-family: 宋体;">使用较复杂的访谈提纲</span><span style="font-family: 宋体;"></span>
C、<span style="font-family: 宋体;">不受书面语言文字的限制</span><span style="font-family: 'Times New Roman';"> </span><span style="font-family: 宋体;"></span>
D、<span style="font-family: 宋体;">容易进行深入调查</span><span style="font-family: 宋体;"></span>
查看答案