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

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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?

选项

答案 (a)336(b)56

解析

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

Thespeed______is340meterspersecond.A、atwhichsoundtravelsB、withwhichso

Inasecond-handbookshop,Billycameacrossabookwhichhethoughtwascertain

Thespeechcontestwillgivehimanopportunityto______histalent.A、denyB、deci

Let’sfinishourhomeworkinafewseconds;it’stimewe______.A、playedfootbal

Themanhasaspecialtalentforartandis______ofamusician.A、anybodyB、any

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

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Acc

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

AnAmericanmanufacturerofracingbikesreporteda1996second-quartergrossin

[originaltext]Moderator:DanielGolemanbroughtthenotionof"EI"to

Whyiseverycompanysomuchinterestedintheprocessofcustomersatisfact

ReadingtheWorldin196BooksA)WriterAnnMorgansetherse

检验硅灰的火山灰活性指数,计算测试配比试件与控制配比试件的抗压强度比,取2个试样

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有的人没有“专业性”观念，欣赏全才、通才，不重视乃至鄙视专业人才，以为只要悟“道

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心房纤颤最常见于A:冠心病 B:风心病二尖瓣狭窄 C:高血压性心脏病 D: