意识不清但有呼吸和循环的患者应取（）
A.复原体位
B.头高脚低位
C.仰卧位，头部略抬高
D.头低脚高位
E.休克卧位
参考答案：A
Mom was usually busy ______ my younger sister during the night and she ______ have less sleep.[ ]
A. tending; tended
B. tended; tending to
C. tending; tended to
D. tended to; tending to
红外激光胶片的吸收光谱峰值为（）
A.250nm
B.550nm
C.633nm
D.820nm
E.950nm
