[简答题]S5. Career-boosting business administration and information technology programs are the most popular, but you’ll also find a variety of literal arts offerings, from film theory to medieval history and foreign language study.
第23题: [单项选择]新生儿的正常髋臼角为() A. 30°~40° B. 23°~28° C. 20°~25° D. 小于20° E. 大于40° 参考答案:A 答案解析:髋臼角随年龄的增长而变小,正常新生儿为30°~40°,1岁为23°~28°,3岁为20°~25°,凡大于此范围者,即表示有髋臼发育不良。
第24题: [单项选择]低血钾的阈值(mmol/L)是() A. 2.5 B. 3.5 C. 4.5 D. 5.5 E. 6.5 参考答案:B 答案解析:本题考查低血钾的概念,血清钾低于3.5mmol/L以下,称为低钾血症。