The distance (which或that) light travels in one second is 300,000 kilometers.光每秒走的距离是30万公里。 相关知识点: 试题来源: 解析that题目考查定语从句关系代词的选用。步骤如下:1. 分析句子结构:先行词是"distance",在定语从句中充当宾语(light travels distance)2. 根
解析 答案A,distance不是特定的物体,所以不用witch来指定.is前面部分整个是主语(从句),意为“1秒钟内光所走的距离”,“light travels in one second”作为一个定语来修饰“distance”, 分析总结。 is前面部分整个是主语从句意为1秒钟内光所走的距离lighttravelsinonesecond作为一个定语来修饰distance...
6. One parsec is defined as the distance at which a star would show a parallax displacement of 1 second of arc, a distance which proves to be approximately 3.258 light years. 一秒差距被定义为一颗恒星位移一度的距离,此距离经证实大约为3.258光年。
because it includes year, it's actually a distance. In a sense, it's a distance expressed in terms of the speed of light, so you can also have other measures like a light-day or even a light-second. However, this is only part of the story, because distances on a cosmic ...
解析 in one second是一秒内 distance 在句中做light travels的定语,the distance that light travels in one second 整一个在句中作主语 分析总结。 distance在句中做lighttravels的定语thedistancethatlighttravelsinonesecond整一个在句中作主语结果一 题目 the distance that light travels in one second is 300...
The speed of light is 2.9979 × 10^5 kilometres per second.(1) Show that one light year is 9.461 × 10^(12) km, correct to 4 significant figures 相关知识点: 试题来源: 解析 一光年是指光在一年(365.25 天)中传播的距离。 首先,计算一年的秒数:365.25 天/年 * 24 小时/天 * 60 分钟/...
In other words, a distance of one light-second (the amount of space covered by light in one second) equals 299,792,458.6 metres. In just one second, light travels almost 300 million metres; light travels really quickly! We might just as easily use the light-second as the fundamental ...
The exact speed of light is 299,792,458 meters per second. This number can be converted into many different units of measurement, but this is the most common.What is the Speed of Light? Despite the speed of light being one of the fastest units of measurement, it is not infinitely fast...
A. that B. at which C. by which D. in which相关知识点: 试题来源: 解析 A 结果一 题目 The distance ___ light travels in one second is 300,000 kilometres. 答案相关推荐 1 The distance ___ light travels in one second is 300,000 kilometres. 反馈 收藏 ...
百度试题 结果1 题目The distance ___ light travels in one second is 300,000 kilometres.相关知识点: 试题来源: 解析 A 反馈 收藏