关于术前准备,下列措施错误的是() ["治疗呼吸感染","控制血压","纠正心律失常","纠正水电、酸碱失衡","口服阿司匹林"]
原发性肝细胞性肝癌最理想的肿瘤标记物是() ["AFP","GGT","GA19-9","CA125","CEA"]
关于声波叙述正确为() ["频率大于20000Hz的声波为超声波","频率小于20Hz的声波为次声波","频率在20~20000Hz之间的声波为可闻声","声波频率高,则波长短","频率与波长呈正比"]
下列各项对肝癌诊断最有价值的是() ["肝区痛","进行性肝肿大","肝质地硬","肝触痛","肝边缘钝"]
生殖权利的两个独立要素是指() ["法律权利和社会权利","自然权利和法律权利","行为权利和法律权利","自然权利和社会权利","自然权利和行为权利"]
磁力泵传递动力时有()作用。