含有蛋白质水成分囊变的MR表现为() ["A．T1加权像低信号，T2加权像高信号","B．T1加权像低信号，T2加权像低信号","C．T1加权像高信号，T2加权像高信号","D．T1加权像高信号，T2加权像低信号","E．T1加权像等或高信号，T2加权像低或高信号"]
增加平均次数会导致() ["A．延长扫描时间，提高信噪比","B．延长扫描时间，降低信噪比","C．缩短扫描时间，增加信噪比","D．缩短扫描时间，降低信噪比","E．以上均不是"]
凡保留膀胱的膀胱癌手术后患者，随诊的最要内容是() ["A．定期膀胱镜检查","B．B超","C．IVP","D．尿常规","E．尿脱落细胞学检查"]
膀胱肿瘤患者行膀胱部分切除的范围是() ["A．距肿瘤1cm以内的全层膀胱壁","B．距肿瘤1.5cm以内的全层膀胱壁","C．距肿瘤2cm以内的全层膀胱壁","D．距肿瘤2.5cm以内的全层膀胱壁","E．距肿瘤3cm以内的全层膀胱壁"]
持续性心因性妄想与精裨分裂症妄想型如何鉴别?
精神分裂症早期出现失眠、易疲劳、工作能力下降等症状时，与神经衰弱如何鉴别?
