侧位胸片上，右叶中央型肺癌伴有右中叶、右下叶不张时，形成的征象称为（）
A.饼征
B.双翼征
C.膈上半月征
D.龟背征
E.膈角移位征
参考答案：B
This is ____ song I told you about yesterday. Isn’t it _______ beautiful one?
A．the, the
B．a, a
C．the, a
D．a, the
I always take something to read when I go to the doctor's ________ I have to wait. [ ]
A. in case
B. so that
C. in order
D. as if
