高等继续教育 / 大学英语I
正确率：100%
题型描述: 单选题
It was well known that Thomas Edison _ _ _ _ _ _ the electric lamp.
A. invented
B. found
C. discovered
D. developed
It was well known that Thomas Edison _ _ _ _ _ _ the electric lamp.
A. invented
B. found
C. discovered
D. developed
参考答案：