硬膜外麻醉的严重并发症（） ["头痛","全脊髓麻醉","喉头痉挛","药液外漏组织坏死","局麻药中毒"]
钻孔灌注桩
长期禁食、每日静滴葡萄糖盐水、四肢软瘫、肠麻痹为（） ["低渗性缺水","等渗性缺水","高渗性缺水","低钾血症","高钾血症"]
急性肠梗阻、大量呕吐、脉搏细数、血压下降为（） ["低渗性缺水","等渗性缺水","高渗性缺水","低钾血症","高钾血症"]
大面积烧伤后、轻度口渴、尿量每小时10ml为（） ["低渗性缺水","等渗性缺水","高渗性缺水","低钾血症","高钾血症"]
某一试样倾点预计为-30℃，需用几个冷腔？各冷腔控制温度是多少？
