对放射线敏感的肿瘤是() ["恶性黑色素瘤","颌骨骨肉瘤","脂肪肉瘤","下颌下腺腺癌","嗜酸粒细胞增生性淋巴肉芽肿"]
支原体与细菌的主要区别是() ["能分支繁殖","无细胞壁","以DNA为遗传物质","不能在人工培养基上生长","可在活细胞培养中生长繁殖"]
在“而无怵惕于胸中”中,“怵惕”之义为() ["恐惧","惊讶","惊慌","惊吓"]
立克次体性状描述正确的是() ["形态为长丝状体","革兰染色呈紫色","有鞭毛,能运动","有荚膜,侵袭力强","吉姆萨染色呈紫红色"]
一患者行毕Ⅱ式胃大部切除术后3年,上腹部有烧灼痛,抗酸剂治疗无效,有时呕吐,内含胆汁,吐后腹痛无缓解,体重减轻。胃镜下黏膜充血、水肿、易出血。最可能的诊断是() ["输入段综合征","输出段梗阻","碱性反流性胃炎","吻合口梗阻","吻合口溃疡"]
中度高渗性缺水缺水量占体重的()轻度高渗性缺水缺水量占体重的()重度高渗性缺水缺水量占体重的()