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
2017-01-21
16
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.
【C18】
选项
A、what
B、where
C、that
D、which
答案
B
解析
考查语法知识。空格处所在句意为:有些电子元件、药物、以及化学物质必须在没有灰尘和其他微粒的空气中生产。where强调“地点,所在”,故答案为B.where。
转载请注明原文地址:https://jikaoti.com/ti/4Bv7FFFM
0
考研英语一
相关试题推荐
Fordecadesthemarketforexpensiveheadphoneswasmainlylimitedtohi-fifans.But【C1】______theboxystereosysteminthecor
Nooneworddemonstratedtheshiftincorporations’attentioninthemid-1990sfromprocessestopeoplemorevividlythanthesi
Aprettypotplantmightmakeanunemotionalworkspacefeelmorepersonal.Butnewresearchhasrevealedthatofficeplantsdo
Aprettypotplantmightmakeanunemotionalworkspacefeelmorepersonal.Butnewresearchhasrevealedthatofficeplantsdo
A1993studyshowingthatstudentswhodidreasoningtestswhilelisteningtothe1781SonataforTwoPianosinDbyMozarttend
A1993studyshowingthatstudentswhodidreasoningtestswhilelisteningtothe1781SonataforTwoPianosinDbyMozarttend
A1993studyshowingthatstudentswhodidreasoningtestswhilelisteningtothe1781SonataforTwoPianosinDbyMozarttend
A1993studyshowingthatstudentswhodidreasoningtestswhilelisteningtothe1781SonataforTwoPianosinDbyMozarttend
随机试题
便秘按发病机制主要分为两大类,分别是
外科急腹症患者,在未明确诊断时应严格四禁。下列哪项不属于四禁内容
进出口货物的收发货人的权利有:()
按照《证券公司监督管理条例》的要求,证券公司要建立完备的内部控制体系。证券公司以保护投资者利益和防范证券公司风险为出发点,重点规定了()主要业务的规则和风险控制措施。Ⅰ.证券经纪业务Ⅱ.证券自营业务Ⅲ.证券资产管理业务Ⅳ.证券公
某企业2010年息税前利润为800万元,固定成本(不含利息)为200万元,预计企业2011年销售量增长10%,固定成本(不含利息)不变,则2011年企业的息税前利润会增长()。
物权法的基本原则中物权绝对性原则,是()的。
()被誉为“济南第一名石”。
某公司网上销售管理系统的数据库部分关系模式如下所示。其中,客户号唯一标识一位客户,产品号唯一标识一件产品,订单号唯一标识一份订单。一份订单必须且仅对应一位客户,一份订单可由一到多条订单明细组成,一位客户可以有多份订单。客户(客户号,姓名,性别,地址
有以下程序:intsub(intn){return(n/10+n%10);}main(){intx,y;scanf("%d",&x);y=sub(sub(sub(x)));printf
在考生文件夹下,打开文档WORD1.DOCX,按照要求完成下列操作并以该文件名(WORD1.DOCX)保存文档。将正文第二段(“美国DisplaySearch研究公司……轻微上扬的可能。”)分为等宽的两栏,栏宽设置为18字符。
最新回复
(
0
)