道碴捣固坚实,轨底与轨枕间不大于()。
A.2mm
B.3mm
C.4mm
D.5mm
参考答案:A
(江苏苏州五市三区期中,33) —How was the 2008 Beijing Olympic opening ceremony?
—________ that the whole world was attracted.
A.It was very fantastic
B.Such fantastic was it
C.So fantastic was it
D.So fantastic it was
男性,58岁。发热,咳嗽1周,黄脓性痰,有臭味,每日约50ml就诊。X线胸片示右下肺近心缘处大片浓密阴影,距膈约1.5cm处有一3.5cm×3.0cm空洞伴液平,内壁光整,侧位病灶位于下叶前段和内侧段,近似三角形,尖端指向肺门,主动脉窗模糊。既往体健。有30年吸烟史,每日一包。
如果纤维支气管镜检查见右肺下叶支气管前内段口有肉芽样突起,粘膜高度充血水肿,管腔狭窄,有脓性分泌物溢出。活检病理检查示炎症性改变。追询病史,患者2月前曾有鱼骨梗喉、呛咳,当时喉科检查未见异物。提问:此时的正确诊断应是()
A.吸入性肺脓肿
B.支气管异物、继发性肺脓肿
C.阻塞性肺脓肿
D.慢性肺脓肿
E.坏死性肺脓肿
F.肺结核空洞