配套习题- 插空法解不相邻问题 -【青果学院】

1/3单选题

难度：

1.5为同学站成一排，甲和乙两个同学不能相邻的排法有___________种。

A
B
C
D

正确答案：QQ==

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

2/3单选题

难度：

2.7位同学站成一排，甲乙丙3个同学互不相邻的排法有__________种。

A
B
C
D

正确答案：Qg==

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

3/3单选题

难度：

3.8个人站成一排，其中甲和乙不能相邻，并且甲和乙都不能排在两端，有________种站法。

A
B
C
D

正确答案：Qg==

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