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
外语
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
2010-05-25
55
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.
【C8】
选项
A、quality
B、sum
C、amount
D、number
答案
C
解析
题型:词汇题。number一般仅仅用于可数名词。amount一般用于不可数名词。例如:annual amount of rainfall(年降雨量),a substantial amount of money(很多钱)等。虽然amount有时候也被用于修饰可数名词,甚至出现在《纽约客》这样的著名刊物上,但是,语法学家一般对此持批评态度。sum意为“总计,总和”。
转载请注明原文地址:https://kaotiyun.com/show/S42K777K
0
专业英语四级
相关试题推荐
______theopportunity,hemightwellhavebecomeanoutstandingcartoonist.
Thelifepaceinbigcitiesrequirespeopletobeabletotravelefficientlyfromoneplacetoanother.Somepeopleseemtothin
Scientistsaroundtheworldareracingtolearnhowtorapidlydiagnose,treatandstopthespreadofanew,deadlydisease.SAR
Peoplewhowaitforallconditionstobeperfectbeforeacting,______
Duetothegreatdifficultyinbusiness,hedecidedto______thepaymentofthebills.
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______istomakearecordofsomethinginordertoshowot
GeorgeWashingtonwasthefirstmannotakingwhosebirthdaywaspubliclycelebratedduringhislifetime.Beforethecolonies
Educationistooimportanttotake【C1】______,whenpeopletakeanythingforseriously,theyput【C2】______blinderswhichcause
Theyoungmanconsideredit______honortoreceive______OscarAwardforthebestsupportingactor.
Hisparentswouldn’tlethimmarryanyone______familywaspoor.
随机试题
转动工作台铣斜齿条时,工件装夹应使工件侧面与纵向移距方向平行。
试述行政组织与企业、事业、群团等其他社会组织的区别。
关于禁水-加压素试验正确的是
[背景资料]某市中心区新建一座商业中心,建筑面积26000m2。地下二层,地上十六层,一至三层有裙房,结构形式为钢筋混凝土框架结构,柱网尺寸为8.4m×7.2m,其中二层南侧有通长悬挑露台,悬挑长度为3m。施工现场内有一条10kV高压线从场区东侧穿过,由
承包商的费用索赔可以分为损失索赔和额外工作索赔,额外工作索赔的计算基础是()。
某施工总承包单位与分包单位在分包合同中约定:分包施工中出现任何安全事故,均由分包单位承担,该约定()。
下列证券中,最容易受到购买力风险影响的证券为()。Ⅰ.普通股Ⅱ.优先股Ⅲ.固定收益政府债券Ⅳ.固定收益金融债券
赤诚公司2005—2009年各年产品销售收入分别为2000万元、2400万元、2600万元、2800万元和3000万元;各年年末现金余额分别为110万元、130万元、140万元、150万元和160万元。在年度销售收入不高于5000万元的前提下,
某市居民张某将自有的一套房产出典给在本市工作的某外籍个人,张某需缴纳房产税。()
TO:StaffFROM:DennisBuckmaster,HRDheadSUBJECT:JobAdvertisementsDATE:August5SinceSolanoMarketingwasestablished,
最新回复
(
0
)