首页
登录
职称英语
[audioFiles]2015m7s/audio_ezfj_004_20153[/audioFiles]
[audioFiles]2015m7s/audio_ezfj_004_20153[/audioFiles]
游客
2023-11-05
32
管理
问题
选项
答案
The Color of Snow
Generally, the color of snow appears white./This is because the light we see from the sun is white./Most natural materials take in some sunlight./This gives them their color./However, when light travels from air to snow, some light is sent back, or reflected./Snow crystals have many surfaces to reflect sun light./Yet the snow does take in a little sunlight./It is this light that gives snow its white appearance./
Sometimes, snow may appear to be blue./The blue light is the product of a long travel path through the snow./In simple terms, think of snow as a filter./A filter is designed to reject some substances,/while permitting others to pass through./In the case of snow, all the light makes it through if the snow is only a centimeter thick./If it is a meter or more thick, however, blue light often can be seen./
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3161166.html
相关试题推荐
[audioFiles]2013q2/audio_ezfm_106_20132[/audioFiles]
[audioFiles]audio_ezfm_0419(20104)[/audioFiles]Britishwomen,incommonwi
[audioFiles]2013w28/audio_ezfj_005_20138[/audioFiles]Ja
Whatkindofhaircutdidthemanwant?[audioFiles]audio_ezfm_0065(20104)[/audio
[audioFiles]2014m8x/audio_ezfm_001_20146[/audioFiles]
Plants[audioFiles]2013q2/audio_ezfj_010_20135[/audioFiles]
[audioFiles]audio_ezfz_0048(20096)[/audioFiles]Disappeari
[audioFiles]2012q3/audio_ezfm_085_20129[/audioFiles]Fromthegolden-tipped
[audioFiles]2013w28/audio_ezfj_011_20138[/audioFiles]
[audioFiles]2014m8s/audio_ezfj_385_20144[/audioFiles]LawandOrder法律与秩序Wha
随机试题
______isMaugham’sbest-knownworkwhichisalsoregardedashisautobiographic
Accordingtoourcompanypolicy,themostsumofmoneyfordamageofeachwashed
Awkward!NinestickyworksituationsandhowtofixthemDeali
SpeakerA:Hello,ShawiniganWater&PowerCompany,howmayIhelpyou?SpeakerB:
Thebusinesscycleismadeupofmanyphasesandoneofthemistheexpansio
工程经济评价应遵循的原则包括( )。A.效益与费用计算口径对应一致的原则 B
下列排序方法中,()是稳定的排序方法。A.直接插入排序和快速排序 B.折半插入
Changesoftenhappenin( ).A.Initiating
根据上图,下列关于我国农村用电发电情况的表述,错误的一项是()。A.与2
(2018年真题)公司具有新产品研发能力,拟投资建设新研制产品的生产项目。该项目
最新回复
(
0
)