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[问答题,简答题] 过电压有哪些类型?是如何产生的?

患者戴某,女,30岁。昨晚不慎受凉,突然出现呕吐,吐胃内容物及清水,伴有恶寒发热,头身疼痛,无汗,口不渴,胸脘满闷,舌苔白腻,脉濡缓。治法宜选用() ["A.疏邪解表,芳香化浊","消食化滞,和胃降逆","燥湿化痰,健脾和胃","温养脾胃,降逆止呕","疏肝和胃,降逆止呕"] 患者戴某,女,30岁。昨晚不慎受凉,突然出现呕吐,吐胃内容物及清水,伴有恶寒发热,头身疼痛,无汗,口不渴,胸脘满闷,舌苔白腻,脉濡缓。此时应诊断为何种病证() ["A.脾胃虚寒型呕吐","饮食停滞型呕吐","痰饮内停型呕吐","外邪犯胃型呕吐","肝气犯胃型呕吐"] 双电源用户一般应遵守哪几种规定? 患者,男,40岁,昨夜受凉,今日突然呕吐,呕吐物多为清水痰涎,胸脘满闷,不思饮食,头眩心悸,苔白腻,脉滑。首选方剂为() ["A.保和丸","益胃汤合橘皮竹茹汤","香苏散合良附子丸","藿香正气散","小半夏汤合苓桂术甘汤"] 患者,男,40岁,昨夜受凉,今日突然呕吐,呕吐物多为清水痰涎,胸脘满闷,不思饮食,头眩心悸,苔白腻,脉滑。治法为() ["A.温化痰饮,和胃降逆","除湿化痰,理气和中","温胃散寒,行气止痛","疏肝理气,和胃降逆","温中散寒,降逆上呃"] 过电压有哪些类型?是如何产生的?
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