选词填空 light travels at a spend which is about a

选词填空 light travels at a spend which is about a light travels at a speed which is about a million times fast 判断正误Light travels at a speed which is about a million times 英语翻译Light travels at a speed which is about a million times The speed ___light travels is very high.A which B at which C light travels about a million times faster than sound Light travels at about____. Light travels 300,000 kilometres a second 英语翻译Light trave at a fast speed.It is about a million times 英语 单选light travels very fast,_____ 300,000 kilometers a seco Light travels faster than a plane.(yes or no) Light travels _____in the earth A.fastest.Bmuch faster