第16题: [单项选择]女性,32岁,反复发热在37.5~38℃左右1个月,伴关节肌肉酸痛就诊,体检:轻度贫血,心界不大,心率90次/分,心尖有收缩期吹风样杂音Ⅲ级,并有收缩中期喀喇音。诊断为风湿性心脏病,二尖瓣关闭不全,发热待查本例拟给予感染性心内膜炎诊断性治疗,对抗生素反应良好,5小时后体温逐渐降至正常,此时抗生素应用疗程是()。 A. 体温正常后3小时可停用抗生素 B. 2周 C. 5个月 D. 4~6周 E. 10个月 参考答案:D
第17题: [单项选择]患者24岁,因牙面上横纹就诊,查体:双侧1236牙冠表面见带状凹陷,牙体无色泽改变 该患者的初步诊断为 A. 猛性龋 B. 釉质发育不全 C. 氟牙症 D. 四环素牙 E. 遗传性牙本质发育不全 参考答案:B
第24题: [单项选择]He found his father hard to understand because his father was too short and thin. 参考答案:B 答案解析:[解析] 原文第一段第一行说到“I could have loved him as I loved my mother but he seemed to hold us off so that we