HIV感染和AIDS患者表现为（） ["P选择素增高","L选择素增高","E选择素增高","ICAM-1增高","P选择素降低"]
诊断股外侧皮神经病的最重要手段是（）。 ["病史与查体","电诊断","MRI","超声检查"]
有一个子女的夫妇首选（） ["宫内节育器","安全期避孕","男用避孕套","绝育术","口服避孕药"]
有2个子女的夫妇最好（） ["宫内节育器","安全期避孕","男用避孕套","绝育术","口服避孕药"]
能杀伤肿瘤细胞的的细胞因子（） ["TNF","IFN","CSF","IL-3","IL-6"]
试述实行有效控制必须具备的基本条件？
