______________absent from competition for two seasons，Shen Xue and Zhao Hongbo still had

the right feeling on the ice .

A．As long as

B．Even if

C．In case

D．No matter

全面风险管理要求在操作风险管理上必须明确（）风险职责。

A.董事会

B.高级管理层

C.各级员工

D.监管部门