A terrible accident occurred in that coal mine last year which left some miners disabled

问题补充：

A terrible accident occurred in that coal mine last year, which left some miners disabled. They couldn’t work for the rest of their life.

A. extraordinary

B. permanently

C. narrowly

D. previously

答案：

A. extraordinary

(答案→)B. permanently

C. narrowly

D. previously

解析：词义辨析。extraordinary特别的，非凡的；permanently永久的；narrowly狭窄的；previously以前的。句意：去年那个煤矿发生了可怕的事故，给一些矿工留下了永久性的残疾。他们下半生都不能工作。所以选B。