With the situation worsening, the army threatens to ________ if a general election is not to be held

as scheduled, BBC reports.[ ]

A. take up

B. take over

C. take on

D. take apart

周围型肺癌阻塞支气管腔后，X线检查常见（）

A.全肺不张

B.肺叶不张

C.节段性肺炎或肺不张

D.气管明显移位

E.气管分叉角度增大