男，4岁，发热T=38度，发热1天后出疹，由面部开始，1天后波及全身，3天后皮疹消退，枕后、耳后、颈后淋巴结肿大。该患儿最可能的诊断是（） ["风疹","过敏性皮炎","猩红热","麻疹","幼儿急疹"]
肠系膜上动脉一般与腹主动脉前壁间呈一角度，正常不应超过（） ["90度","80度","60度","50度","30度"]
五行中，土的特性是（） ["曲直","炎上","润下","从革","稼穑"]
重度脱水的表现特点（） ["心音低钝，血压下降，四肢阙冷","哭时泪少，尿量明显减少","皮肤、口唇黏膜稍干燥","失水量为体重的5%~10%","皮肤弹性尚可"]
关于听神经瘤的CT表现，下述不正确的是（） ["内听道可不增宽","肿瘤边缘清楚","可发生囊变坏死","多无明显强化","少数可双侧发病"]
汽轮机调节系统对调速汽门有何要求？
