低钾血症可引起的酸碱失衡是（）. ["代谢性酸中毒","代谢性碱中毒","呼吸性酸中毒","呼吸性碱中毒","混合型酸碱平衡失调"]
40岁，患者，左面部渐进性增大的包块，MRI检查如图所示，应考虑为（）。 ["左面部毛细血管瘤","左面部囊肿","左面部脓肿","左面部脂肪瘤","左面部神经纤维瘤"]
T1加权像肝脏病变表现为近似水信号的是（） ["肝囊肿出血","海绵状血管瘤","囊性转移癌","局灶性结节增生","上述全不正确"]
对于运动神经可引起肌肉强直收缩频率是（） ["20～30Hz","1～10Hz","10～20Hz","40～50Hz","60～100Hz"]
心源性脑栓塞时，栓塞多发生在（） ["大脑前动脉","大脑中动脉","大脑后动脉","椎动脉","基底动脉"]
腹外疝的腹股沟疝：临床表现与诊断
