首页
登录
职称英语
[audioFiles]2019m9x/audio_ezfj_014_201909[/audioFiles] T
[audioFiles]2019m9x/audio_ezfj_014_201909[/audioFiles] T
游客
2023-10-26
11
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 sunlight. / 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://www.tihaiku.com/zcyy/3132996.html
相关试题推荐
[audioFiles]2019m4x/audio_ezfj_201903_020[/audioFiles]T
[audioFiles]2019m4x/audio_ezfj_201903_018[/audioFiles]A
[audioFiles]2019m4x/audio_ezfj_201903_017[/audioFiles]S
[audioFiles]2019m4x/audio_ezfj_201903_016[/audioFiles]B
[audioFiles]2019m4x/audio_ezfj_201903_015[/audioFiles]L
[audioFiles]2019m4x/audio_ezfj_201903_005[/audioFiles]A
[audioFiles]2019m4x/audio_ezfj_201903_012[/audioFiles]H
[audioFiles]2019m4x/audio_ezfj_201903_011[/audioFiles]F
[audioFiles]2019m4x/audio_ezfj_201903_004[/audioFiles]G
[audioFiles]2019m4x/audio_ezfj_201903_002[/audioFiles]F
随机试题
PASSAGETWO[br]Whatistheauthor’sattitudetowardsthepassengerontheTita
屠格涅夫发表的最后一部长篇小说是()A.《前夜》 B.《罗亭》 C.《散文诗
某公司的外部审计师已列出一张风险和问题的清单,并已经向高层管理人员建议,内部审计
关于固定义齿固位体的选择,叙述不正确的是()A.在选择固位体时,必须
下列关于客户的理财价值观的说法,正确的是( )。 Ⅰ.理财价值观决定了理财目
下列各项中,表述正确的是()。 Ⅰ.安全边际是指证券市场价格低于其内在价值
根据上海证券交易所2016年最新行业分类,沪市上市公司划分为( )大行业。A.
房地产市场通常需要()年以上的时间才能完成供求平衡的调节过程。A:1B:2C
关于此患者的临床治疗,下列哪一项不正确A.全身应用抗生素 B.去除局部刺激
国际工程投标报价时,在工程所在国当地采购的材料设备,其预算价格应包括材料设备市场
最新回复
(
0
)