患者需乘坐轮椅提示其Berg平衡量表得分为()
A.<40分
B.<30分
C.0~20分
D.21~40分
E.41~56分
参考答案:C
______ the temperature might drop, coal was prepared for warming.
A.To consider
B.Considered
C.Considering
D.To be considered
试述传统的术后镇痛方法有何缺点。