Until people could conduct experiments from outer space, there was no ______proof of Einstein's Theory of Relativity, E=MC2.
A. reciprocal B. empirical C. emphatic D. theoretical
选择哪个正确选项呢?怎么理解句子意思呢
Until people could conduct experiments from outer space, there was no empirical proof of Einstein's Theory of Relativity, E=MC2.
参考疑问:在人们能在太空进行实验之前,爱迪生的相对论的实验证据还没有出现,E=MC2.
A. reciprocal 互相的;相应的;互惠的
B. empirical 经验主义的;以经验为依据的 ,以观察或实验为依据的
C. emphatic 强调的;着重的;加强语气的
D. theoretical (研究、解释)理论的,理论性的,理论上的;推想的
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