红细胞受体(Em)为哪种细胞早期成熟的标志() ["T细胞","B细胞","D68等共有的标记是","巨核细胞","干细胞和祖细胞"]
冠心病多发生在以后,脑力劳动者居多() ["25岁","35岁","40岁","45岁","50岁"]
女性,20岁,晚餐后,在用煤气取暖器的浴室内洗澡1小时,出现头晕、呕吐、胸闷不适,最可能的诊断是()。 ["急性胃肠炎","一氧化碳中毒","心绞痛","低血糖反应","高血压脑病"]
关于体温生理变动的叙述,下列哪项是正确的() ["变动范围无规律","昼夜变动值大于2℃","午后体温比清晨低","女子排卵后,体温下降","肌肉活动使体温增高"]
无扩张冠脉作用的药物是() ["阿替洛尔","消心痛","心痛定","腺苷","地尔硫"]
我国最常见黑素瘤类型()。