To invent a new kind of electric light, Thomas Edison did lots of ______.[ ]A. researchB. inventions

题目简介

To invent a new kind of electric light, Thomas Edison did lots of ______.[ ]A. researchB. inventions

题目详情

To invent a new kind of electric light, Thomas Edison did lots of ______.  
[     ]
A. research
B. inventions
C. experiments
D. experiences
题型:单选题难度:中档来源:同步题

答案

C

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