病人突发严重呼吸困难,应考虑下列哪些疾病而予以紧急检查并抢救
A.异物吸入
B.肺大血管栓塞
C.急性支气管炎
D.急性肺炎
E.张力性气胸
参考答案:A,B,E
—I've got some wonderful news.We have been invited to the palace ball.
—Really?______.
A.I don't believe so
B.I believe not
C.I can't believe it
D.I don't believe it
以下关于全口义齿人工牙的排列,说法正确的是()。
A.上尖牙唇面与腭皱的侧面通常相距约1cm
B.上颌第一前磨牙牙长轴垂直,颊、舌尖均与平面接触
C.上颌第二前磨牙颊尖与平面接触,舌尖高于平面约1mm
D.上颌第一磨牙远中颊尖高于平面约1mm
E.上颌第二磨牙近中颊尖高于平面约1.5mm