题目内容：
六度空间理论指最多通过（）个中间人你就能够认识任何一个陌生人。
A.4个
B.5个
C.6个
D.7个
参考答案：
选择题：六度空间理论指最多通过（）个中间人你就能够认识任何一个陌生人。
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