(2013·青岛二模)—I don't mind how you do it ________ you finish the painting on time.

—OK, I see.

A．as well as

B．as far as

C．as long as

D．as fast as

始吾居乡有病寒而咳者问诸医医以为蛊不治且杀人取其百金而治之饮以蛊药攻伐其胃肠烧灼其体肤禁切其饮食之美者期月而百疾作内热恶寒而咳不已累然真蛊者也又求于医医以为热授之以寒药旦朝吐之暮夜下之于是始不能食惧而反之则钟乳乌喙杂然并进而漂疽痈疥眩瞀之状无所不至三易医而疾愈甚里老父教之曰是医之罪药之过也子何疾之有人之生也以气为主食为辅今子终日药不释口臭味乱于外而百毒战于内劳其主隔其辅是以病也子退而休之谢医却药而进所嗜气完而食美矣则夫药之良者可以一饮而效从之期月而病良已（苏轼《盖公堂记》节选）

换了几个医生，病才好了。