A good title for this passage is ______. [br] Newton’s theory of gravity was cor

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问题 A good title for this passage is ______. [br] Newton’s theory of gravity was corrected by Einstein’s theory because of ______.

选项 A、a new hypothesis about gravity
B、careful measurements of Mercury’s motion
C、new practical considerations of Newton’s theory
D、newly predicted observations

答案 B

解析
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