Because of Einstein’s Theory of Relativity, scientists never again regarded the world .
| A．as before they did | B．as they regarded before |
| C．as they did before | D．as they had before |
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Because of Einstein’s Theory of Relativity, scientists never again regarded the world .
| A．as before they did | B．as they regarded before |
| C．as they did before | D．as they had before |
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