It is well known that Thomas Edison______the electric lamp.

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问题 It is well known that Thomas Edison______the electric lamp.

选项 A、found
B、invented
C、discovered
D、developed

答案B

解析本题为近义词题。选项A)意为“发现”；选项B)意为“发明”；选项C)意为“通过探索而发现”；选项D)意为“发展”。所以答案为B)。

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