题目内容：
Questionsarebasedonthefollowingpassage: Inancienttimesthemostimportantexaminationswerespoken,notwritten．IntheschoolsofancientGreeceandRome,testingusuallyconsistedofsayingpoetryaloudorgivingspeeches．
IntheEuropeanuniversitiesoftheMiddleAges,studentswhowereworkingforadvanceddegreeshadtodiscussquestionsintheirfieldofstudywithpeoplewhohadmadespecialstudyofthesubject．Thiscustomexiststodayaspartoftheprocessoftestingcandidatesforthedoctordegree．
Generally,however,modernexaminationsarewritten．Thewrittenexamination,whereallstudentsaretestedonthesamequestion,wasprobablynotknownuntilthenineteenthcentury．Perhapsitcameintoexistencewiththegreatincreaseinpopulationandthedevelopmentofmodemindustry．Aroomfullofcandidatesforastateexamination,timedexactlybyelectricclocksandcarefullywatchedoverbymanagers,resemblesagroupofworkersatanautomobilefactory．Generally,duringexaminationsteachersandstudentsareexpectedtoactlikemachines．
Onetypeoftestissometimescalledan"objective"test．Itisintendedtodealwithfacts,notpersonalopinions．Tomakeupanobjectivetesttheteacherwritesaseriesofquestions,eachofwhichhasonlyonecorrectanswer．Alongwitheachquestiontheteacherwritesthecorrectanswerandalsothreestatementsthatlooklikecorrectanswerstostudentswhohavenotlearnedthematerialproperly．
IntheMiddleAgesstudents（ ）． A．tookobjectivetests
B．specializedinonesubject
C．weretimedbyelectricclocks
D．neverwroteexams
参考答案：
答案解析：