肾母细胞瘤的主要临床特点是() ["A．虚弱婴幼儿腹部有巨大包块","B．有血尿、尿频、尿痛","C．血中肾素活性升高","D．常早期转移至颅骨和肝","E．血中促红细胞生成素升高"]
一种儿童肿瘤好发肺转移() ["A．肝母细胞瘤","B．肾母细胞瘤","C．胰母细胞瘤","D．神经母细胞瘤","E．淋巴瘤"]
脑室CT造影()离子型造影剂()子宫输卵管造影()上消化道造影检查() ["A．硫酸钡","B．GD-DTPA","C．伊索显","D．泛影葡胺","E．碘化油"]
肝血管造影()X线平片()MRI()USG() ["A．可显示脓腔内的气液成分","B．肝脓肿壁明显强化","C．个别病例可显示肝区积气","D．出现“包绕征”","E．诊断肝脓肿的首选方法，敏感度可达100%"]
胆胰管造影()尿路造影()缺血性脑卒中早期诊断()脊髓造影()头颈及体部大血管检查() ["A．DWI","B．MRCP","C．MRU","D．MRM","E．MRA"]
在病变尚未出现形态变化之前利用功能变化成像()有利于解剖结构和病变的三维显示和定位()
