患儿,7岁,每年春季出现打喷嚏伴流清涕,连续3年。鼻镜检查见双鼻腔黏膜及下鼻甲水肿,变应原皮肤试验阳性,特异性lgE抗体检测阳性,鼻分泌物涂片检查嗜酸性粒细胞阳性。最有可能的诊断是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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