远处太空站距离地球 L ,有一艘宇宙飞船以速度 v 刚刚向太空站起航。假如要从地球发送信息到太空站,是地球上发信息过去快,还是飞船上发更快?
A.
地球上发更快;
B.
飞船上发更快;
C.
一样快。
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