急性白血病骨髓象最主要特征是() ["红细胞系统显著减少","有核细胞增生极度活跃","骨髓原始细胞>30%","未找到巨核细胞","白血病裂孔现象"]
劳力性心绞痛的典型心电图改变是:() ["ST段抬高","ST段水平或下斜型下降","ST段抬高,异常Q波,T波倒置","ST-T呈鱼钩样降低,T波倒置","弓背向下的ST段抬高,T波高尖"]
有关分裂样人格障碍的说法,正确的是() ["性格明显内向,回避社交,多离群独处","易激惹,冲动,并有攻击行为","比较关注别人对他的看法","以自我为中心,强求别人满足其需要或意愿","常合并智能障碍"]
皮肤完整无伤口的损伤,按分类属于() ["闭合伤","贯通伤","盲管伤","切线伤","反跳伤"]
日晒可能加重病情的疾病有() ["雀斑","黄褐斑","黑变病","白癜风","花斑癣"]
有载调压变压器本体滤油机的作用?