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【单选题】
患者，女，30岁。心悸，气促2个月，咯粉红色泡沫痰。查体：面颊暗红，口唇发绀，双肺底湿哕音，心尖区可舒隆隆样杂音，下肢浮肿。其诊断是( )A.
肺源性心脏病
B.
冠心病
C.
二尖瓣狭窄，心功能不全
D.
高血压心脏病
E.
心包积液
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反馈参考答案：
举一反三
【简答题】ISO在制定OSI参考模型进行层次划分的原则有哪些?
【单选题】The noise outside was () .
A.
too irritating that
B.
so irritating so his speech was hardly audible
C.
so irritating that his speech was hardly audible
D.
so irritating enough that his speech was hardly audible
【单选题】The noise outside the classroom ______ me from listening attentively to the teacher.
A.
contracted
B.
distracted
C.
subtracted
D.
abstracted
【单选题】Could you please shut the door; the noise outside ______ the speaker’s voice.
A.
drowns
B.
chokes
C.
buries
D.
fills
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