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【单选题】
,45岁。建筑工人,工作时不慎从高空跌落,急诊入院。病人气促,脉搏增快,左侧胸部叩诊呈浊音。怀疑为血胸,最可靠的依据是A.
气管移位
B.
胸部X线检查示胸膜腔积液
C.
胸膜腔穿刺抽出不凝固血液
D.
呼吸困难
E.
呼吸音减弱或消失
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