Light travels very fast. What is the speed of light? A. 300,000 kilometers per second. B. 30 kilometers per hour. C. 3,000 meters per minute. 相关知识点: 试题来源: 解析 A。光的速度是每秒 30 万公里。其他选项速度不对。反馈 收藏 ...
题目What is the speed of light? A. 300000 kilometers per second. B. 30000 kilometers per second. C. 3000 kilometers per second. D. 300 kilometers per second. 相关知识点: 试题来源: 解析 A。听力中会提到光的速度是 300000 千米每秒。其他选项的速度都不对。
What is the speed of light? A. About 300,000 kilometers per second. B. About 3,000 kilometers per second. C. About 30,000 kilometers per second. D. About 3,000,000 kilometers per second. 相关知识点: 试题来源: 解析 A。解析:光速约为每秒 300000 千米。B、C、D 选项的数值都不...
题目What is the speed of light? A. 300,000 kilometers per second. B. 300,000 meters per second. C. 30,000 kilometers per second. D. 30,000 meters per second. 相关知识点: 试题来源: 解析 A。光的速度是 30 万千米每秒,所以答案是 A。B、C、D 选项的速度都不对。
What is the speed of light in a vacuum? A. 300,000 kilometers per second. B. 30,000 kilometers per second. C. 3,000 kilometers per second. D. 300 kilometers per second. 相关知识点: 试题来源: 解析 A。解析:真空中的光速是 30 万千米每秒。选项 B、C、D 的速度都不正确。
What is the speed of light in a vacuum? A. About 300,000 kilometers per second. B. About 3,000 kilometers per second. C. About 30,000 kilometers per second. D. About 3,000,000 kilometers per second. 相关知识点: 试题来源: 解析 A。本题考查对光速的了解。光在真空中的速度约为...
百度试题 结果1 题目___ is the speed of light? A. What B. How much C. How fast D. How many 相关知识点: 试题来源: 解析 A。“光速是什么?”询问事物的内容用 what。反馈 收藏
What is the speed of light in a vacuum? A. About 300,000 kilometers per second. B. About 186,000 miles per hour. C. About 670 million miles per hour. D. About 1,080 million kilometers per hour. 相关知识点: 试题来源: 解析 A。在真空中,光的速度约为 300,000 千米每秒,A 选项...
百度试题 结果1 题目What is the speed of light in a vacuum? A. 299,792 kilometers per second B. 299,792 meters per second C. 299,792 miles per hour D. 299,792 feet per second 相关知识点: 试题来源: 解析 B 反馈 收藏
The author mentions that the speed of light is very fast. What is the speed of light in a vacuum? A. 300,000 kilometers per second B. 200,000 kilometers per second C. 100,000 kilometers per second D. 400,000 kilometers per second 相关知识点: 试题来源: 解析 A。解析:光在真...