神经丛阻滞成功的因素有（）
A.正确的定位
B.熟悉的解剖
C.安全剂量局麻药
D.病人的合作
E.合理辅助镇静药
参考答案：A, B, C, D, E
为避免出现不良反应，在输血前后及输两袋血液之间应输入少量的（）。
A.0.9%NaCl溶液
B.0.1枸橼酸钠溶液
C.5%葡萄糖溶液
D.10%葡萄糖溶液
E.氯化钾溶液
Written in a hurry, ____. How can it be satisfactory? [ ]
A. they find many mistakes in the report
B. lots of mistakes have been made in the report
C. there are plenty of mist akes in the report
D. the report is full of mistakes
