I developed very slowly and it took nearly two hundred years I was built as an analytical

问题补充：

I developed very slowly and it took nearly two hundred years I was built as an analytical machine by Charles Babbage.

A. before

B. after

C. long

D. short

答案：

(答案→)A. before

B. after

C. long

D. short

解析：考查连词before的用法。在这里意为“才”，句意：我发展的很慢花了将近两百年的时间我才被建成一台分析机。所以选A。