首页
登录
职称英语
One reason human beings can thrive in all kinds of climates is that they c
One reason human beings can thrive in all kinds of climates is that they c
游客
2023-11-18
10
管理
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. [br] 【C9】
选项
A、under
B、inside
C、on
D、at
答案
D
解析
题型语法题。“在一定的温度下”;在某一个特定的温度/速度,介词通常用at。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3197138.html
相关试题推荐
Reasonsforcarefulteachingrangefrompreventingachild______tokeepingac
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______
Yourexplanationdoesn’thold______.A、honeyB、liquidC、reasonD、waterD此题考查固定搭
Cancomputersreason?Reasoningrequirestheindividualtotakeagivenset
随机试题
[originaltext]M:Ihaven’tseenGeorgeallday.W:Haveyoucheckedthelab?Iwo
HowCanGirlsWinin
[originaltext]M:Hi,Annie.Doyouprefertotravelwithsomebodyortravelalo
手三阳经在躯干部的分布是()A.体侧 B.肩胛部 C.腹部 D.背部
某化学教师在一次化学测验中设计了下列试题,并对部分学生的解题结果进行了统计和分析
下列关于单代号网络计划时间参数的计算步骤描述错误的是( )。 A、计算工作的
商业地产项目购买客户的特征为( )。A.企业或社会高端阶层 B.有一定的投资
测定长期趋势值的方法主要有( )。A.扩大时距法 B.缩小时距法 C.移
王羲之在《兰亭集序》里说:“永和九年,岁在癸丑,暮春之初,会于会稽山阴之兰亭”,
安装会计软件前要确保计算机的操作系统负荷会计软件运行要求,可能要对操作系统进行一
最新回复
(
0
)