屈光不正应包括()
A.远视、近视
B.远视、老视
C.散光
D.近视、远视、散光
E.近视、远视、散光、老视
参考答案:D
He is a student at Oxford University, ____for a degree in computer science.
A.studied
B.studying
C.to have studied
D.to be studying
绩效管理的成本——效益机制及对绩效的促进,主要是:()
A.注重社会公平
B.注重和强调投入
C.结果导向
D.责任机制