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
45
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] 【C14】
选项
A、ensures
B、ensure
C、ensuring
D、to ensure
答案
D
解析
题型:语法题(动词不定式的承前省略)。在本句中,to control和to ensure作并列目的状语。
转载请注明原文地址:https://tihaiku.com/zcyy/3197143.html
相关试题推荐
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
Between1897and1919atleast29motionpicturesinwhichartificialbeingswer
Cancomputersreason?Reasoningrequirestheindividualtotakeagivenset
随机试题
AUNSecurityCouncildelegationtravelstoSouthAfricaonthefirststopofa
Directions:Forthispart,youareallowed30minutestowriteashortessayent
WhichofthefollowingstatementsaboutthenewcensorisINCORRECT?[br][orig
根据《水利水电工程标准文件》中的合同条款,下列索赔事件中,承包人可以同时获得工期
女性,20岁,转移性右下腹痛30小时,伴呕吐发热,体温38.5℃,下腹部有压痛,
起重量在()以上的起重设备安装工程应组织专家论证专项方案A、100KN B、2
A.潜在并发症:休克 B.有感染的危险与损伤有关 C.缺乏保健知识 D.排
根据下列资料回答问题。 2010年,我国进出口贸易总额为29727.6亿美元
某施工企业8月份钢筋原材料的实际费用为22万元,而计划值为20万元,由于钢筋原材
女,29岁。体型肥胖,婚后2年未孕,月经周期45~60天,月经量少,血LH/FS
最新回复
(
0
)