硬膜外麻醉的禁忌证是()
A.高血压
B.婴幼儿和老人
C.凝血功能不全
D.颅内高压
E.头痛
参考答案:C
对艾滋病病毒有效的消毒方式不包括以下哪种()
A.75%乙醇
B.紫外线照射
C.5%次氯酸钠溶液
D.2.5%碘酊
E.0.1%家用漂白粉
I knew one of the detectives ______ successfully saved the little baby in the accident. [ ]
A. who
B. whose
C. which
D. whom