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当前学科：医学检验科住院医师
题目：
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男性，27岁。持续发热18d，体温大多在38．5℃以上，间有降至37℃。此种发热称为（）
A
长期不明原因发热（FOU）
B
长期低热
C
急性发热
D
功能性发热
E
恶性高热
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