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【单选题】
患者，男，25岁，1日前突发高热，伴胸痛、咳嗽，黄色脓性痰，左耳痛及咽痛明显，未作特殊处理。查体：T37.8℃，肺部听诊胸骨两侧可闻及水泡音，专科检查：咽部充血严重，电耳镜检查示左耳鼓膜膨出，紧张部周边可见呈放射状的扩张血管，鼓区压痛明显，纯音听阈45dBHL，血常规示WBC总数增高。根据患者病情，除尽早应用足量抗菌药物控制感染外，还应适时行鼓膜切开术，以下说法正确的是（）
A.
鼓膜切开术后待炎症消退，大多数患者鼓膜切口至少需要2～3封闭，且多伴瘢痕形成和粘连
B.
鼓膜紧张部大穿孔为鼓膜切开术的适应证之一
C.
若患者鼓膜已穿孔，外耳道可见大量黄色脓液，从鼓膜穿孔处排出，仍需行鼓膜切开术
D.
全身及局部症状较重，鼓膜明显膨出，虽经治疗无明显好转者，此时鼓膜切开术
E.
以上都不对
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