当事人对仲裁协议的效力有异议的，一方请求仲裁委员会作出决定，另一方请求人民法院作出裁定的，由仲裁委员会裁定。 ( )

The following are basic principles of the Oral Approach EXCEPT ______.

A. selection principle


B. gradation principle
C. four skills principle


D. presentation principle