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单选题
患儿男，3岁。有饮食不洁史，高热2小时，体温40℃，呕吐一次，面色苍白，四肢冰冷，神志不清。最有可能的诊断是（）
A
流行性乙型脑炎
B
中毒性细菌性痢疾
C
病毒性脑炎
D
结核性脑膜炎
E
败血症
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