补体含量降低的疾病不包括以下哪种() ["心肌梗死","类风湿关节炎","革兰阴性细菌感染","SLE","自身免疫性溶血性贫血"]
经典性病包括() ["梅毒","性病淋巴肉芽肿","尖锐湿疣","生殖器疱疹","淋病"]
下列哪种溶血性疾病血浆游离Hb在正常范围()。 ["阵发性睡眠性血红蛋白尿","黑尿热","蚕豆病","遗传性球形红细胞增多症","冷凝集素综合病"]
CT机房的相对湿度应保持在()。 ["20%以下","20%~35%","40%~65%","70%~80%","80%以上"]
敏感系数(SAF)反映的是()。
装卸表面安装元器件,一般需要哪些专用工具?