患者,男,27岁。因江水泛滥,饮用江水,突然出现剧烈腹泻,随后呕吐,由水样物转为“米泔水”样物,其诊断最可能的是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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