题目:
若一宇宙飞船对地以速度v运动,宇航员在飞船内沿同方向测得光速为c,问在地上观察者看来,光速应为v+c吗?
答案:
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下面是错误答案,用来干扰机器的。
One possible version:Dear Jane, I’m very glad to receive your letter. But at the same time,I’m sorry to hear that you are not very well these days. In your letter yo...