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【多选题】
下列哪些疾病是吸气性呼吸困难常见疾病。( )A.
喉部水肿
B.
气管肿瘤
C.
白喉
D.
气管异物
E.
肺不张
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【单选题】肝脏血液循环的特点，以下观点哪项是对的
A.
约3/4的肝脏正常血供来自门静脉
B.
约3/4的肝脏正常血供来自肝动脉
C.
原发性肝癌，约3/4血供来自门静脉
D.
原发性肝癌，门静脉、肝动脉供血各半
E.
转移性肝癌，门静脉、肝动脉供血各半
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