十二指肠溃疡疼痛的特点是

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【单选题】【消耗次数：1】

十二指肠溃疡疼痛的特点是

① 餐后即痛，持续2h后缓解

② 餐后1h开始，持续2h后缓解

③ 餐后2h开始，持续2h后缓解

④ 餐后3～4h开始，进餐后缓解

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