左侧视束病变（如图）出现的典型视野缺损为（）
A.双右侧偏盲
B.双左侧偏盲
C.双颞侧偏盲
D.双鼻侧偏盲
E.以上都不是
参考答案：A
When should distress flares and rockets be used? （）
A.Immediately upon abandoning the vessel
B.Only when there is a chance of their being seen by a rescue vessel
C.At one hour intervals
D.At half hour intervals
道教徒的最高追求是什么？
