男性,35岁,胃溃疡史5年,3个月来上腹无规律疼,进食后显著,钡透示胃黏膜增粗、紊乱,胃窦见1.0cm×1.5cm龛影。首选的处理是()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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