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
55
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] 【C13】
选项
A、ask
B、demand
C、request
D、require
答案
D
解析
题型:词汇题。“要求”一般用require。demand语气太重,request则是“有礼貌地要求”。
转载请注明原文地址:https://tihaiku.com/zcyy/3197142.html
相关试题推荐
Reasonsforcarefulteachingrangefrompreventingachild______tokeepingac
WhichofthefollowingisNOTamongthereasonsleadingtothewoman’seyeprobl
WhichofthefollowingisNOTamongthereasonsleadingtothewoman’seyeprobl
______manis______reasoninganimal.A、The,aB、The,theC、/,/D、/,aD
OnereasonforthesuccessesofAsianimmigrantsintheU.S.isthattheyhavet
______wealthydoesnotnecessarilymeanthatamanisgreedy.A、Forthereasont
Isthisthereason______atthemeetingforhiscarelessnessinhiswork?A、heex
______whatmay,we’renotgoingtomakeanyconcessionstohisunreasonabledema
Thereasonwhyhehasbeensuchasuccessis______henevergivesup.A、whatB、whe
Thereasonwhyhehasn’tcomeis______.A、becausehismotherisillB、becauseof
随机试题
[audioFiles]2016m8x/audio_ezfj_ezflisteningd_201607_033[/audioFiles]TheSta
[originaltext]childrenintheUnitedStatesareexposedtomanyinfluences
[originaltext]IntheUnitedStatesmanyhavebeentoldthatanyonecanbeco
散发有害气体的实验室及相邻的办公室,其通风系统的设计,正确的是()A.仅对实
假定某量的绝对误差为4,相对误差为2%,则该量的真值为()。[2007年真题]
患者关节冷痛、屈伸不利,两周后表现为关节红肿热痛。属于( )。A.实证转化为虚
红细胞内二磷酸甘油酸变位酶参与的糖代谢途径是A.糖的无氧酵解 B.糖的有氧氧化
直接参与胆固醇生物合成的物质是( )。A.ADP B.FAD C.UTP
购买伪造的增值税专用发票又出售的,按( )定罪处罚。A.非法购买增值税专用发票罪
工程项目进度管理中,可以称为软逻辑关系的是()。A.组织关系 B.工艺关系
最新回复
(
0
)