一道物理题,求波长A galaxy is receding from us at a speed v = 0.96c.L

一道物理题,求波长A galaxy is receding from us at a speed v = 0.96c.L at speed 还是at a speed At a fantastic speed 1.It is dangerous _______a car at such a high speed.C The speed ___light travels is very high.A which B at which C He is riding____ low speed on the road A.at B.in C.on D.to is dangerous _a car at such a high speed. what a high speed he is runing at with a high speed 还是at a high speed? please call us().A.in B.on C.at D.from let us look at the snacks from around the world=let us ( )a Ali drove from Town A to Town B at an average speed of 60 km