最近几年来，"双肺同期灌洗技术"在我国广泛开展，减轻了尘肺患者的痛苦，延长了生命，对陶工尘肺患者进行灌洗，灌洗后的生理盐水颜色为（）。

A.灰色

B.黄色

C.白色

D.金色

E.浅绿色

________in Paris for five years, but still can't read and write in French.[ ]

A. Having lived          

B. Having been living    

C. He has lived          

D. Although he has lived