:7人排成一排,在下列情况下,各有多少种排法1.甲排头 2.甲不排头、也不排尾 3.甲乙丙三人必须在一起 4.甲乙之间有且只有两人 5.甲乙丙三人两两不相邻 6.甲在乙左边(不一定相邻) 7.甲乙
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 21:44:43
![:7人排成一排,在下列情况下,各有多少种排法1.甲排头 2.甲不排头、也不排尾 3.甲乙丙三人必须在一起 4.甲乙之间有且只有两人 5.甲乙丙三人两两不相邻 6.甲在乙左边(不一定相邻) 7.甲乙](/uploads/image/z/1047537-9-7.jpg?t=%EF%BC%9A7%E4%BA%BA%E6%8E%92%E6%88%90%E4%B8%80%E6%8E%92%2C%E5%9C%A8%E4%B8%8B%E5%88%97%E6%83%85%E5%86%B5%E4%B8%8B%2C%E5%90%84%E6%9C%89%E5%A4%9A%E5%B0%91%E7%A7%8D%E6%8E%92%E6%B3%951.%E7%94%B2%E6%8E%92%E5%A4%B4+2.%E7%94%B2%E4%B8%8D%E6%8E%92%E5%A4%B4%E3%80%81%E4%B9%9F%E4%B8%8D%E6%8E%92%E5%B0%BE+3.%E7%94%B2%E4%B9%99%E4%B8%99%E4%B8%89%E4%BA%BA%E5%BF%85%E9%A1%BB%E5%9C%A8%E4%B8%80%E8%B5%B7+4.%E7%94%B2%E4%B9%99%E4%B9%8B%E9%97%B4%E6%9C%89%E4%B8%94%E5%8F%AA%E6%9C%89%E4%B8%A4%E4%BA%BA+5.%E7%94%B2%E4%B9%99%E4%B8%99%E4%B8%89%E4%BA%BA%E4%B8%A4%E4%B8%A4%E4%B8%8D%E7%9B%B8%E9%82%BB+6.%E7%94%B2%E5%9C%A8%E4%B9%99%E5%B7%A6%E8%BE%B9%EF%BC%88%E4%B8%8D%E4%B8%80%E5%AE%9A%E7%9B%B8%E9%82%BB%EF%BC%89+7.%E7%94%B2%E4%B9%99)
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