The author of the article believes that it is the test system, _____ teachers, that is responsible for the heavy

burden of the middle school students nowadays. [ ]

A. other than

B. or rather

C. rather than

D. more than

契约型基金的参与主体不包括（）

A.普通合伙人

B.基金投资者

C.基金管理人

D.基金托管人