首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、They become lighter when the temperature is low. B、Their chemical composition changes with the temperature. C、Their color dark
A、They become lighter when the temperature is low. B、Their chemical composition changes with the temperature. C、Their color dark
admin
2021-07-14
57
问题
M:It’s so cold now, but this morning it was so hot and sunny. I wish there was a way I could always be wearing the most suitable clothes for the temperature.
W:I recently read that in ten years we’ll be wearing clothes that change with the weather. So when it’s cold, our clothes will warm up, and when it’s hot, our clothes will cool off.
M:Oh, very funny! So we’ll be wearing gigantic clothes with built-in air conditioners and heaters.
W:I’m being serious! Researchers have discovered a method of treating fibers with plastic crystals capable of storing and releasing heat as the temperature fluctuates. These treated fibers absorb more heat than untreated fibers. Researchers are still working with this, but soon this process will be widespread.
M:That’s fascinating. I didn’t know that fibers had the capability of storing heat. How does that work?
W:These fibers work with the heat by rearranging their structures. The treated fibers move back and forth between two solid shapes.
M:I don’t understand. What kind of shapes do they change into?
W:When the weather gets cooler, the crystals become cooler and revert back to their original structure.
M:That’s truly unbelievable. You said that it’ll be a decade before this type of clothes will be available. What a shame! I don’t think I can wait that long.
5. What is the weather like today according to the speakers?
6. What is the man’s initial reaction to what the woman describes?
7. What is unusual about the fibers treated with special plastic crystals?
8. How do the fibers work as the temperature changes?
选项
A、They become lighter when the temperature is low.
B、Their chemical composition changes with the temperature.
C、Their color darkens when the temperature is high.
D、Their structures are rearranged as the temperature fluctuates.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/D0J7777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayentitledOnFreeAdmissiontoParks.Youshouldwriteatleast
纸的发明对世界文化和国际交流是一个重大的贡献。最早的汉字是刻在动物的骨头或乌龟壳上的。战国时期(theWarringStatesPeriod),文字开始被刻在竹简(bambooslips)上。然而,骨头、竹片和木头都非常重,不便于携带。到了西汉时期
A、Ithasnotbeenverysuccessful.B、Ithaslongbecomeanewtrend.C、Ithasmetwithstrongresistance.D、Ithasattractedal
TheUnitedStateshasamajorproblemonitshands.Theonlywaytosolveitisthrougheducation.Negroes(黑人)shouldknowabout
Secondhandsmokeisaccountablefor42,000deathsannuallytononsmokersintheUnitedStates,includingnearly900infants,acc
A、Hethinksit’smainlyforchildren.B、Hefeelsitwouldbeworthwhile.C、Hebelievesitistoocomplicated.D、Hethinksitmay
A、Herbusinessskills.B、Herstudyexperienceabroad.C、Hercriticalthinkingability.D、Herculturalknowledge.B短文开篇谈到,Ashley在
A、Onlyanimaltearsaretobevalued.B、Onlyanimaltearscankillcertainbacteria.C、Onlyhumanscryforothers.D、Onlyhumans
Educationofexceptionalchildrenmeansprovisionofspecialeducationalservicestothosechildrenwhoareeitherhandicappedo
OnNovember16thanumberofwell-knownmusicianswereonhandtohelpmarkthelaunchofGoogle’snewonlinemusicservice.Al
随机试题
奶牛,6岁,产后3周出现红尿,继而尿呈棕褐色,排尿次数增加,每次排尿量相对较少;尿液检查未见红细胞。血液凝固不良,红细胞数2×1012个/L,血红蛋白含量130g/L。可视黏膜苍白、黄染。最可能降低的是
注册消防工程师职业道德的基础和核心是()。
晶科公司是一家从事心血管疾病原料药研发、生产和销售的企业,专有的原料药提取和纯化技术、质量保证和质量控制操作规程都是公司保持在行业内竞争力的关键。受经济危机的影响,公司业绩下降明显,为此决定进行大范围降薪。而掌握原料药提取和纯化技术的核心技术人员薪酬则不受
人物面孔呈鹅卵形的《北齐校书图》是北齐画家__________的传世作品。
世界上第一个无产阶级政党是()。
科学发展观提出的根本依据是
设A为n阶可逆矩阵(n≥2),则[(A*)*]-1=_______(用A*表示).
设0<P(A)<1,0<P(B)<1,P(A|B)+=1,则A与B必
"Wearehere,"mymomsaid.ThiswasthefirsttimeIhadcomewithmymothertoahomelessshelter(救助站).Weunloadedthefood
OnVolunteer1.现在越来越多的人加人志愿者的队伍2.志愿者的意义3.我的看法
最新回复
(
0
)