急性肾功能不全按病因可分为几类?
关于颅脑CT扫描技术的描述,不正确的是() ["头部CT检查常以听眦线作为扫描基线","扫描范围从听眦线平面连续向上扫描至头顶","增强扫描时颅内转移瘤可在注射对比剂60秒开始扫描","颅脑的CT窗宽80~100HU,窗位35HU","骨窗的窗宽1000~1400HU,窗位300~500HU"]
不发生机化的病变是() ["赘生物","梗死灶","细胞萎缩","阻塞性血栓"]
下列哪项不是白色海绵状斑痣的特点() ["A.家族性遗传疾病","B.常伴有口干","C.损害皱襞状、海绵状","D.口腔、眼结膜、外阴都可发生","E.无痛"]
细胞坏死过程中,核变小、染色质浓聚,被称之为() ["核溶解","核分裂","核固缩","核碎裂"]
试述急性肾功能不全少尿期的临床表现。