第33题: [单项选择]青光眼的早期视野缺损表现为() A. 象限盲 B. 鼻侧阶梯 C. 同侧偏盲 D. 颞侧偏盲 E. 向心性视野缩小 参考答案:B 答案解析:该题属于基本概念记忆的考查。同侧偏盲多为视交叉以后的病变所致,颞侧偏盲为视交叉病变所引起,象限盲与鼻侧阶梯均属于扇形视野缺损,前者为视放射的前部损伤,后者多为青光眼的早期视野缺损表现,而向心性视野缩小
A. had a life-span of 74 years B. lived a shorter but better life than those born later C. lived to 47 years of age D. lived 27 years longer than those born in 1981 参考答案:C 答案解析:由原文最后一句It has increased from 47 years for those born in l900 to 74 years l981(寿命从1900年出生的人的47岁增长到198