10个月患儿呕吐腹泻3天,每日呕吐7~8心次、10余次水样便查体:精神稍萎,口唇红,皮肤弹性差眼窝及前凹陷,心音较低,腱反射迟钝。考虑可能性最大的诊断为
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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