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
考研
One reason human beings can thrive in all kinds of climates is that they can control the qualities of the air in the enclosed sp
One reason human beings can thrive in all kinds of climates is that they can control the qualities of the air in the enclosed sp
admin
2019-06-10
31
问题
One reason human beings can thrive in all kinds of climates is that they can control the qualities of the air in the enclosed spaces in which they live. Air conditioning is the use of mechanical systems to 【C1】______ that control in such places【C2】______homes, offices, theaters, institutions, factories, airplanes, and automobiles. The most familiar type of air conditioning is summertime cooling. Although important, this is【C3】______one of several aspects of air conditioning. Other applications【C4】______the control of the humidity (or air moisture), cleanliness, circulation of the air, and heating.
Tests have 【C5】______ that people generally feel best 【C6】______ certain temperature, humidity, and air velocity conditions. Temperatures can 【C7】______ from 21.5°C with 70 percent relative humidity to 28 °C with 30 percent relative humidity. Relative humidity is the 【C8】______ of moisture in the air 【C9】______ a specific temperature compared【C10】______the amount it could hold at that temperature.【C11】______air velocities range from 4.5 to 10.5 meters per minute. It is also desirable that an air conditioner【C12】______dust, pollen, smoke, and odors from the air.
In many industrial environments, air conditioning is essential. Most print shops, for example, 【C13】______constant humidity in order to control paper shrinkage and【C14】______the【C15】______operation in some processes.
Libraries, especially ones with rare books, require air control to【C16】______the physical quality of their collections. Bakeries and the tobacco and cotton industries require high humidity【C17】______their products, and perishables such as fruits must be stored in cool, dry rooms. Some electronic components, drugs, and chemicals must be manufactured【C18】______the air is as free as possible【C19】______dust and other particles. Air conditioning is【C20】______in hospitals, especially in operating rooms.
【C6】
选项
A、at
B、around
C、within
D、under
答案
D
解析
考查固定搭配。under…conditions意为“在一定条件下”,故答案为D.under。
转载请注明原文地址:https://kaotiyun.com/show/LKnZ777K
0
考研英语一
相关试题推荐
Dopeoplegethappierormorefoul-temperedastheyage?Stereotypesofirritableneighbors【C1】______,scientistshavebeentryi
Dopeoplegethappierormorefoul-temperedastheyage?Stereotypesofirritableneighbors【C1】______,scientistshavebeentryi
ManynewcomerstotheUnitedStatesfindthemselvesstrangetotheAmericanways.Itusuallytakessometimeforthemtogetto
Aperson’shomeisareflectionofhispersonality.Dependingonpersonality,mosthaveinminda(n)"【C1】______home".Butingen
Aperson’shomeisareflectionofhispersonality.Dependingonpersonality,mosthaveinminda(n)"【C1】______home".Butingen
RunningfortheofficeofthePresidentoftheUnitedStatesisexceptionallyarduousandshouldnotbeundertakenbythe【C1】___
RunningfortheofficeofthePresidentoftheUnitedStatesisexceptionallyarduousandshouldnotbeundertakenbythe【C1】___
Oneofourexpectationsabouteducationisthatitwillpayoffintermsofupwardmobility.Historically,thecorrelationbetw
About3billionpeoplelivewithin100milesofthesea,anumberthatcoulddoubleinthenextdecadeashumansflocktocoasta
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheycancontrolthequalitiesoftheairintheenclosedsp
随机试题
重症肺炎引起各系统病理生理变化的最关键因素是
A.反射B.折射C.衍射D.干涉E.多普勒效应反射波的频率随被测物的运动速度而改变的现象称为
A.齐多夫定B.甲氧苄啶C.特比萘芬D.乙胺丁醇E.氧氟沙星
下列关于开发区区域环境影响评价中噪声影响分析与评价主要内容说法正确的是()。
适合水运的货物有()。
中国传统的文学大家,其文本与人格必是始终如一,珠联璧合,无懈可击的,才可称为大家。其人生不仅要与大群人生合二为一,而且要与大自然融为一体,这才能与中国文化精神中“以人为本”及“天人合一”思想相映照。这是古典中国的文学大统,然而已被中国当代文学遗忘得一干二净
protectionism
TCP/IP是Internet采用的协议标准,它是一个协议系列,由多个不同层次的协议共同组成,用于将各种计算机和设备组成实际的计算机网络。TCP/IP协议系统分成4个层次,分别是网络接口层、网络层、传输层与应用层。(54)是属于网络层的低层协议,主要用途
用标准访问控制列表禁止非法地址197.178.0.0/16的数据包进出路由器的正确配置是()。
Somepeoplethinkthatwiththedevelopmentoftechnology,ourtraditionalcultureswillevaporate.Whatdoyouthink?Writean
最新回复
(
0
)