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
41
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://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
Whatbelongstoyoubutisusedmorebyothersthanyourself?Name什么东西是你的,但是别人用的比
AccordingtoascientificstudypublishedinApril,2015,birdshaveshownt
Agreatdealofnonsenseiswrittenaboutthecharacterofanation,chieflyb
Astudyofarthistorymightbeagoodwaytolearnmoreaboutaculturetha
下列()可以推动知识产权金融服务工作。A.深化和拓展知识产权质押融资工作
单台容量在125MⅤ·A及以上的独立变电所油浸电力变压器室宜采用()。A.卤
常用的网络地址有A、B、C三类。一个B类网络最多可以包含()主机,B类网
高锰酸钾修正法适用于含大量亚铁离子,不含其他还原剂及有机物的水样。用高锰酸钾氧化
关于我国境内期货市场监督管理体系的表述,正确的有()。A.中国期货业协会是
下列关于Excel打印与预览操作的说法中,正确的是()。A、输入数据时是在表格中
最新回复
(
0
)