血液中的声速大约是() ["330m/s","1000m/s","1570m/s","5000m/s","8000m/s"]
艾滋病病毒主要侵害人体细胞中的() ["B淋巴细胞","T淋巴细胞","抑制性T细胞","辅助性T细胞","巨噬细胞"]
正常情况下,新斯的明经肝脏代谢的量为() ["25%","30%","40%","50%","75%"]
关于免疫学检查,错误的是() ["大多数用以检测抗体的方法都可以用于检测抗原","特异性抗体检测可以反映人群的感染率","恢复期特异性抗体都比急性期上升4倍有助于确诊","皮肤试验不属于免疫学检查","T细胞亚群检测常用于艾滋病的诊断"]
艾滋病高危人群中哪项错误() ["50岁以上的人","静脉药瘾者","性乱者","男性同性恋","多次输血者"]
凹进外墙面,三面均有建筑物围护结构,中间设挑梁和隔板分户使用的阳台,如何计算建筑面积?