A talent contest has 8 contestants. Judges must award prizes for first, second,

游客2025-02-24 22

问题 A talent contest has 8 contestants. Judges must award prizes for first, second, and third places, with no ties.
(a)In how many different ways can the judges award the 3 prizes?
(b)How many different groups of 3 people can get prizes? [br]

选项

答案 56

解析

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A talent contest has 8 contestants. Judges must award prizes for first, second,

SpeakerA:IwanttotakepartintheschoolTalentShow.SpeakerB:That’snic

Thedramaschool______placestostudentswhocanshowtalent.A、donatesB、offers

Thespeechcontestwillgivehimanopportunityto______histalent.A、denyB、deci

Let’sfinishourhomeworkinafewseconds;it’stimewe______.A、playedfootbal

AsecondEinsteinnotewasalsosoldattheauction.爱因斯坦的第二张便条也在拍卖会上被卖出。

Inasampleofassociatesatalawfirm,30percentaresecond-yearassociates,

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Whi

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Acc

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Socialworkersoftenuse______intheirresearch.A、fraudsB、narrationsC、refuta

Itwasn’tsuchagooddinner______shehadpromisedus.A、thatB、whichC、asD、wh

[originaltext]W:Wellhithere.Whatareyoulookingfortoday?M:Uh,I’mjust

下图是我国东南沿海某城市的城市功能区分布示意图。图中A、B、C是三种不同的功能区

正常人血清中钙和磷相互的浓度关系是(以mg/dl)A.［Ca］×［P］=40~6

下列有关缺铁性贫血患儿的护理措施中不妥的是A:绝对卧床休息 B:纠正不良饮食习

.改革开放30多年来，我国城镇化进程不断加快，城镇化率以年均1%的速度增长，从

某房屋采用墙下条形基础，建筑东端的地基浅层存在最大厚度4.3m的淤泥质黏土，方案

根据《事业单位人事管理条例》，初次就业的工作人员与事业单位订立的聘用合同期限三年

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