正常食管内的pH是()
A.2.5~4.0
B.3.5~5.0
C.5.5~7.0
D.4.5~6.0
E.6.5~8.0
参考答案:C
——How do you think I should receive the reporter?
——____ you feel about him, try to be polite.
A.How
B.What
C.Whatever
D.However
对面神经失用的描述,不正确的是()
A.损伤限于髓鞘
B.轴索结构正常
C.出现暂时性神经传导阻滞
D.无面瘫
E.病因去除后神经功能可在短期内恢复