完善和发展民主集中制在当前的首要任务，是要进一步（）
A.强化中央的权威
B.克服软弱涣散状态
C.强化党委的权威
D.加强党内民主建设
参考答案：D
Many students believe the choice of their courses and universities should _______their own interest.
A．be based on
B．base on
C．basing on
D．base at
