睫状环阻塞性青光眼治疗不包括()
A.睫状肌麻痹药
B.高渗剂脱水剂和减少房水生成药物
C.晶状体玻璃体切割手术
D.糖皮质激素
E.缩瞳剂
参考答案:E
It was not so much the many blows he receivedthe lack of fighting spirit that led to his losing the job. ( )
A.for
B.of
C.as
D.like
抽样研究中如何才能控制或减小抽样误差?