— Oh, Amy! Your English is so excellent.

— Thank you. You know, my uncle often helps me with it at home, for he ________ in

      Australia for ten years.[ ]

A. has lived

B. lived

C. had lived

D. has been living  

9岁女孩，寒战，高热，咳脓痰2天。查体：体温39．2℃，左肺闻及湿性啰音，X线胸片显示：左肺下叶大片致密阴影，给予抗生素治疗。2天后症状加重，胸痛并呼吸困难，左胸呼吸音降低，胸片示左胸大量胸腔积液。进一步诊断最有价值的方法是（）

A.胸部CT

B.结核菌素试验

C.胸部超声波检查

D.左侧胸膜腔穿刺

E.痰细菌培养及药敏试验