常见血栓有哪几种?常发生于哪些部位?
在诊断中心型肺癌方面，MRI表现有() ["A．在显示支气管壁增厚、管腔狭窄、阻塞等方面不及CT","B．MRI对确定纵隔内及肺门部肿大淋巴结优于CT","C．肺癌在TWI上呈中等均匀信号，TWI上为高信号，信号多不均匀","D．MRI在显示肺门部小肿块时优于CT","E．MRI对确定肺的肿块与支气管的关系较CT更为清楚"]
下列不属于抑酸药的是() ["A．阿托品","B．丙谷胺","C．奥美拉唑","D．雷尼替丁","E．碳酸氢钠"]
肺癌实质的MRI信号特点一般为() ["A．TWI中等信号，TWI高信号","B．TWI低信号，TWI高信号","C．TWI信号均匀，TWI不均匀","D．TWI高信号，TWI高信号","E．TWI信号均匀、TWI信号均匀"]
淤血有哪些后果?举例说明。
何谓血栓，其形成条件如何?
