题目内容:
Whichofthefollowingbestdescribestheorganizationofthispassage?
A.Anexerciseanditsimportanceareexplained. B.Aproblemisexaminedandsolutionsaregiven.
C.Twodifferentviewsofaproblemarepresented.
D.Recentdevelopmentsinmedicinearedescribed.
参考答案:
答案解析: