一道国外数学题Ten students have been nominatedfor the positions ofsecretary,treasurer,social convenor,and fundraising chair.In how many ways can these positions be filled if a pair of twins are running and plan to switch positions on occasion
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问一道国外数学题!
一道国外数学题Ten students have been nominatedfor the positions ofsecretary,treasurer,social convenor,and fundraising chair.In how many ways can these positions be filled if a pair of twins are running and plan to switch positions on occasion
一道国外的积分数学题,麻烦帮算下,后天需要用到,麻烦帮做下,
几道国外大学数学题
国外大学关于极限数学题
几道国外大学数学题
一道国外的大1数学题,求救啊,刚到国外.代数课课老师布置了些作业,这道题都蒙圈了,完全不会做.
请教一道国外的大1数学题求救啊,刚到国外.微积分课老师布置了些作业,这道题都蒙圈了,完全不会做.
() students listen to music.A.More ten B.Other ten C.Ten others D.Another ten
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