题目：
6个月患儿，发热咳嗽5天，近一日呕吐，喷射状，抽搐2次，静点抗生素3天，查体：嗜睡，前囟饱满，两肺闻及少许中小水泡音，X线片：右下肺少许斑片状阴影，血常规：白细胞14.8×10/L，淋巴31%，脑脊液检查外观混浊，白细胞500×10/L，蛋白阳性，糖降低，作PPD试验，硬结直径为5mm。最可能的诊断为（）
A.结核性脑膜炎
B.病毒性脑膜炎
C.肺炎双球菌脑膜炎
D.流行性乙型脑炎
E.肺炎，中毒性脑病
答案：
参考答案：C
6个月患儿，发热咳嗽5天，近一日呕吐，喷射状，抽搐2次，静点抗生素3天，查体：嗜睡，
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