在腰椎MR成像中，预饱和技术常用抑制() ["A．吞咽运动伪影 ","B．心搏伪影 ","C．呼吸运动伪影 ","D．化学位移伪影 ","E．逆向流动液体信号"]
关于胰腺癌正确的是() ["A．随年龄变化","B．男性多于女性","C．与饮食有关","D．与从事焦炭工作有关","E．儿童发病罕见"]
在0.5Tesla的场强中，氢质子(1H)的共振频率约为() ["A．6.4MHz ","B．21.3MHz","C．42.6MHz ","D．63.9MHz ","E．85.2MHz"]
胰腺癌姑息性治疗主要要解决哪些问题() ["A．解除黄疸","B．解除胃排空障碍","C．解除肠梗阻","D．止痛","E．放疗或化疗促使肿瘤缩小"]
胃癌化疗较有效药物有哪些() ["A．5-FU","B．CDDP","C．CBP","D．TPT","E．MMC"]
休克的治疗原则是____，____，____，____和____。
