The spaceship is traveling ___ the speed of light. A. at B. in C. on D. for 相关知识点: 试题来源: 解析 A。以……的速度用 at the speed of,固定搭配。in 表示在……里面,on 表示在……上面,for 为了等意思,都不恰当。反馈 收藏 ...
解析 A。本题考查介词的用法。“at the speed of”是固定短语,表示“以……的速度”,所以选 A。B 选项“in”通常用于“in + 一段时间”表示“在……时间内”;C 选项“with”表示“和……一起,带有”;D 选项“on”通常表示“在……上面”。反馈 收藏 ...
speed of light- the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second light speed,c constant- a number representing a quantity assumed to have a fixed value in a specifie...
Spacecraft can travel ___the speed of light . A. for B. on C. in D. at 答案 D 【解析】 试题分析: 航天器能以光的速度行驶。“以 …… 速度”要用介词at,所以选D。 考点: 考查介词的用法 相关推荐 1 Spacecraft can travel ___the speed of light . A. for B. on C. in...
Light travels ___ (at/in) a speed of about 300 ,000 km per second. 相关知识点: 试题来源: 解析 【第1空】 at【分析】句意:光的传播速度是每秒300,000公里。ataspeedof,以 速度,固定搭配,故答案为:at。 【点评】 考查选词填空。 注意固定短语atthe speedof的用法。 反馈 收藏 ...
【题目】With a transporter, we can fly _the speed of light.()A. inB. toC. atD. on 相关知识点: 试题来源: 解析 【解析】in在.里;to到;at在;on在..上;根据题干,考查 at the speed of以...的速度是固定用法故选:C。 反馈 收藏
Flying at the speed of light,thoughts were spinning in my head.So many things were left unsaid.Had to let you go. 答案 在光速中穿梭,思想涌入脑中.很多事情没有表白,不得不对你放手.相关推荐 1Flying at the speed of light,thoughts were spinning in my head.So many things were left unsaid....
I can never imagine travelling ___ the speed of light. A. in B. for C. to D. at E. 4.carry out a survey___ F. ircle round the sun___ 相关知识点: 试题来源: 解析 D 反馈 收藏
In a science fiction story, if a spaceship travels at the speed of light, it can reach another planet in no time. What does "in no time" mean? A. Very slowly B. Very quickly C. Never D. Sometimes 相关知识点: 试题来源: 解析 B。“in no time”意思是“立刻,马上”,表示非常快,...
1The speed of light is ___ great for us ___ measure in simple units.A.much; toB.very; toC.too; toD.too; in order to 2 The speed of light is ___ great for us ___ measure in simple units. A. much; to B. very; to C. too; to D. too; in order to 反馈 收藏 ...