首页
登录
职称英语
Why has the woman brought up the subject of snowflakes? [br] [originaltext]W: H
Why has the woman brought up the subject of snowflakes? [br] [originaltext]W: H
游客
2024-10-25
1
管理
问题
Why has the woman brought up the subject of snowflakes? [br]
W: Have you ever looked really closely at the snowflake?
M: Sure. But they usually melt too fast for me to get a close look. Why do you ask?
W: I’m just curious. I was reading an article about the formation of snowflakes and I realized that I. had never paid much attention to them before.
M: Well, there’s a big variety, isn’t there?
W: Yeah. But they all have one of three basic forms, hexagonal columns, hexagonal plates, and branching star-shaped form.
M: I wonder why the forms are different. Maybe because ice starts to form on dust particles with different shapes .
W: Well, I thought it might have something to do with the water saturation of the air, but we were both wrong. The author of this article did extensive research and concluded that the shape of snow crystals is largely controlled by the temperature of the air. For example, the feathery star-shaped snowflake that everyone thinks is typical occurs only at a specific temperature.
M: Doesn’t the relative humidity have anything to do with the shapes?
W: Apparently not. The effective super-saturation is simply to alter growth rate. The greater use the saturation, the faster the snowflakes form.
M: Mm, next time it snows, I’ll make a point of taking a closer look.
选项
A、The shape of dust particles in the air.
B、The relative humidity.
C、The temperature of the air.
D、The geography of the area.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3816024.html
相关试题推荐
TheMalaysia’soustedDeputyPrimeMinisterwill______.[br][originaltext]
Theproject’smaincontractorwasfrom______.[br][originaltext]Official
Theproject’smaincontractorwasfrom______.[originaltext]Officialsfrom
Codesarescannedby______.[br][originaltext]Whatarezebrastripeson
Codesarescannedby______.[br][originaltext]Whatarezebrastripeson
ItcanbeinferredthatScottwasaherobecause______.[br][originaltext]
ItcanbeinferredthatScottwasaherobecause______.[br][originaltext]
ItcanbeinferredthatScottwasaherobecause______.[originaltext]Many
Whatisthemaintopicoftheconversation?[br][originaltext]W:Today’sarts
Whatisthemaintopicoftheconversation?[br][originaltext]M:You’reprobab
随机试题
建议行超声引导下穿刺活检明确诊断的是()。A.甲状腺多发结节伴甲亢 B.甲状
在电流电压保护或者距离保护中,保护l段的整定值为线路全长的80%-85%,这
静脉注射不正确的步骤是A.在穿刺点上方约6cm处扎止血带 B.常规消毒皮肤后嘱
信托投资公司担任特定目的信托受托机构应当具备的条件不包括()。A、具有安全高效的
A.肺脏B.肝胆管C.肠黏膜静脉D.小肠E.肝脏实质组织华支睾吸虫的寄生部位是
Thechangeinthatvillagewasmiraculou
关于变动总成本、单位变动成本和固定总成本,下列说法不正确的是()。A.变动总成
临床判断失眠的依据是A.睡眠深度 B.睡眠时间 C.能否消除疲劳 D.能否
急性肾衰竭少尿期尿量为 A.100ml/dB.400ml/dC.80
社会医学的重要任务之一,就是研究和倡导适合于时代的A.技术 B.医学模式 C
最新回复
(
0
)