英语阅读疑惑
Normallyastudentmustattendacertainnumberofcoursesinordertograduate,andeachcoursewhichheattendsgiveshimacreditwhichhemaycounttowardsadegree.InmanyAmericanuniversitiesthetotalworkforadegreeconsistsofthirty-sixcourseseachlastingforonesemester.Atypicalcourseconsistsofthreeclassesperweekforfifteenweeks;whileattendingauniversityastudentwillprobablyattendfourorfivecoursesduringeachsemester.Normallyastudentwouldexpecttotakefouryearsattendingtwosemesterseachyear.
Normallyastudentwouldatleastattend_____classeseachweek.
A)36B)20
C)12D)15