指出不属于漏睛的诊断依据：
A．泪液清稀
B．按压睛明穴，脓液自泪窍溢出
C．冲洗泪道不通
D．冲洗泪道通而不畅
E．睛明穴下方皮色正常
参考答案：D
People in Korea _____ bow when they meet for the first time.[ ]
A. supposed to
B. are suppose to
C. are supposed
D. are supposed to
教师在教学中运用的直观教具可以分为两类：一类是实物直观，另一类是______。
