小脑幕裂孔疝常见的病因是（） ["外伤性颞叶血肿","脑积水","大脑半球肿瘤","脑水肿","高血压"]
发现和诊断子宫肌瘤最敏感的影像学检查方法是（） ["A.CT","B.X线","C.MRI","D.超声","E.输卵管造影"]
诊断肠易激综合征最关键的是（） ["除外器质性疾病","具有腹痛症状","腹痛与排便有关","大便次数增加","粪便化验检查正常"]
登革热需与哪些疾病相鉴别（） ["钩体病","伤寒","疟疾","猩红热","麻疹"]
肾上腺皮质激素治疗脑水肿的作用原理是（） ["使细胞内溶酶体膜稳定","加强或调整血脑屏障功能","降低脑血管壁的通透性","减轻和对抗炎症性反应","收缩血管"]
多谐振荡器是一种常用的产生（）脉冲的电路
