氰化物中毒的解毒疗法，首选 （）

A.亚硝酸盐

B.小剂量亚甲蓝

C.纳洛酮

D.二巯丙醇

E.亚硝酸盐-硫代硫酸钠

— Is that the small town you often talked about?  

— Right, just the one________ you know I used to work for years. [      ]

A. that.          

B. which       

C. where

D. what