按照权证结算方式不同，权证可分为（）。
A.现金权证
B.其他权证
C.实物交割权证
D.以上说法均正确
参考答案：A, C
解析：了解权证的概念及分类。
________, I believe, and you will find Tom is very outgoing. [ ]
A. Having a talk with the student
B. One talk with the student
C. Given a talk with the student
D. If you have a talk with the student
下列哪一项不属于巡警的主要职责( )
A．维护交通秩序B．防止和处理交通事故C．接受公民报警D．劝解、制止公共场所发生的民间纠纷
