问题
单项选择题
The following are basic principles of the Oral Approach EXCEPT ______.
A. selection principle
B. gradation principle
C. four skills principle
D. presentation principle
答案
参考答案：C
解析： 口语法遵循的原则有选择(Selection)原则、分级(Gradation)原则和语言项目导入(Presentation)原则。