简介：<正>综合练习A1完形填空(10分)Menfirstmeasuredtime(?)usingastickintheground.Thelengthofthe(?)shadowwould(?)whattimeofdayitwas.(?),theEgyp-tiansusedapillar,(?)asagnomon,andthendevelopedasimplesundial,(?)consistedofastonewithapointeronit.Thestonewasplacedinaneast-westdirection,andtheshadowofthepointershowedthetime.About300BC,aBabylonian(?)Berosusinventedasemi-circularsundial,(?)hemarkedtwelvehours.TheBabylonians,liketheEgyp-
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