Children under sixteen are not permitted to see such kind of films as ________ bad for their mental

development.[ ]

A. was        

B. were

C. is  

D. are

患者男性，63岁，干咳，痰中带少许血丝，18岁开始吸烟，35岁后每日2包。右侧胸腔穿刺抽出血性胸腔积液450ml。X线示右下肺见一3cm×4cm致密阴影。

根据上述病例，拟考虑的疾病是（）。

A.中央型肺癌

B.右下肺炎

C.周围型肺癌

D.肺脓肿

E.转移癌