单选题
It is well known that Tomas Edison ______ the electric lamp.
A) discovered C) developed
B) found D) invented
A、
It is well known that Tomas Edison ______ the electric lamp.
B、
discovered
C、
found
D、
developed
E、
invented
【正确答案】
D
【答案解析】
提交答案
关闭