患者因肺肾阴虚，虚火妄动，脉络受伤而致咯血。治疗应首选
A．孔最
B．梁丘
C．隐白
D．太渊
E．定喘
参考答案：A
_____ alone in the large house, the little boy had to learn to survive by himself. [ ]
A. To leave
B. Leaving
C. Left
D. Being left
应急夹板的作用是什么？
