X线检查发现右上肺均匀致密大片状影,其中有含气支气管影,最有可能为下列疾病中的()
A.支气管肺炎
B.大叶性肺炎
C.肺脓肿
D.干酪性肺炎
E.肺癌
参考答案:B
下列说法正确的是( )
A.有两个面平行,其余各面都是四边形的几何体叫棱柱.
B.有两个面平行,其余各面都是平行四边形的几何体叫棱柱.
C.有一个面是多边形,其余各面都是三角形的几何体叫棱锥.
D.棱台各侧棱的延长线交于一点.
---________ he still _________ in his office?
---No. He __________ back home.
A.Is; working; went
B.Has; worked; is going
C.Is; working; has gone
D.Did; work; is going