GRE Text Completion: ETS Fundamental-GRE填空ETS基础 - 377QVWNXJ7NDTE99X

Social scientists have established fairly clear-cut (i)____________ that describe the appropriate behavior of children and adults, but there seems to be (ii)____________ about what constitutes appropriate behavior for adolescents. A. functions B. confusion C. estimates D. rigidity E. norms F. indirectness