The engine of the ship was out of order and the bad weather __the helplessness of the crew at sea.[ ]

A. added to

B. added up

C. added  

D. added up to

男性，49岁。右侧胸痛、干咳2周就医。体检：气管居中，右胸叩浊，呼吸音消失。X线胸片示右侧大量胸腔积液。胸水为血性，找到癌细胞，大致为腺癌。

本例最有价值的组织学定性诊断技术是（）

A.纤支镜检查和活检

B.胸膜活检

C.痰脱落细胞检查

D.癌标志物检查

E.胸腔镜检查