江苏省常州市横山桥高级中学10-11学年高二上学期期中考试（英语Ifyouandyourfriendswishtoshareasecretyoucanwriteitincodeandnooneelsewillbeabletoreadit.Codesareonewayofwritinginsecrets.Ciphers(暗码)areanother.Inthecodeeachwordiswrittenasasecretcodeorwordnumber.Inaciphereachletterischanged.Codesandciphershaveplayedanimportantroleinthehistoryoftheworld.JuliusCaesartheRomanrulerwhodefeatedalmostallthecountriesinEuropeabout2000yearsagousedacipherwhenhesentsecretmessagestohistroops.DuringAmericanRevolutionGeorgeWashington’sspiesusedakindofcodetosendhiminformationabouttheenemybeforehismilitary(军事的)action.InWorldWarIItheAmerican“broke”orfiguredoutJapan’smostimportantnavycodesandgotenoughinformationtodestroyapowerfulJapanesefleet(舰队).Storekeepersusedcodestomarktheirgoods.Thecodesshowedhowmuchwaspaidforthegoodsorwhentheywereaddedtothestock.Businessmenusedcodestohideplansfromtheirbusinessenemies.Sometimespersonallettersordiarieswerewrittenincode.Manypeopleenjoyedfiguringoutcodesandcipherssimplyasahobby.Inthe16thcenturycodesandcipherswereverypopularamongscientists.Theywrotemessagestoeachotherincodesothatnooneelsewouldlearntheirsecrets.GeronimoGardanoanItalianastrologer(星相家)mathematiciananddoctorinventedthetrelliscipher.Hetooktwosheetsofpaperandcutexactlythesameholesineachone.Thenhesentonesheetwhichhecalledatrellistoafriendandkepttheotherforhimself.Wheneverhewantedtowriteamessageheputhistrellisovertheothersheetofpaperandwrotethesecretmessagethroughtheholes.Thenheremovedthetrellisandfilledtherestofthepaperwithwordsthatwouldmakesense.WhenhisfriendsreceiveditHeputhistrellisoverthewritingandreadthesecretmessage.Codesand71_______72.________waystosendinformationDifferent73_______lThetrelliscipherwasthe79_____ofGardano.lSomescientistsuseditto80_____secretinformation.◆In74______codeswereusedtoachievebusinesspurposes.◆Manypeopleenjoyedfiguringoutcodesasan75________.◆Inthe76________tomakethemilitaryleaders77______ofthesituationofthewarcodeswerealsousedto78_______thewar.

以下属于卖场员工使用的防损方法的是（） A: 发现损耗及空包装及时上报 B: 对贵重易盗商品商品未上面前上扣贴签 C: 贵重易盗商品要陈列在探头下 D: 发现可疑人员及时跟踪或通知防损 E: 洗化类及口香糖禁止使用托盘直接陈列 F: 易调包商品暗码识别G．使用鱼线或限制性挂钩延缓盗窃H．对高损耗商品及时清点