donotcontributetothefinalimage、单选题：Atechnologistcoversthecollimator(whichisfacingtheceiling)withabsorbentpaperandobtainsauniformityimageusingaliquidfloodsourcewithaddedmTc.Aroundcoldspotisseenontheimage.Subsequentlythetechnologistremovesthecollimator，turnsthecamerafacedownandobtainsanotherimageusingapointsourceplacedonthefloor.Thisimageappearsuniform.Whatisthemostlikelycauseofthecoldspotonthefirstimage?（）AdecoupledphotomultipliertubeBsubtlecrystalcrackCcollimatordefectDimproperenergypeaking 愤狸醒敢蔼彭呜参倍秦贡祟票 核医学 知到智慧树答案100分最新版 第一章 单元测试 1、单选题： What is the relationship between 123I and 124I?( ) A:Element 点我查看答案 核医学 知到智慧树答案100分最新版 第一章 单元测试 1、 ： What is the relationship between 123I and 124I?( ) A:Element 点我查看答案 化磋偏科赂窜盾埃郸褐柒馈禄