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
2024-10-22
0
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] 【C20】
选项
A、virtual
B、viable
C、vibrant
D、vital
答案
D
解析
题型:词汇题。vital极为重要的;关系重大的。例如;a vital examination至关重要的考试。A项virtual实际上的;事实上的。B项viable.可行的;可实施的。C项vibrant.振动的;(色彩、光线)鲜明的,明快的;活泼的;生机勃勃的。
转载请注明原文地址:https://tihaiku.com/zcyy/3811711.html
相关试题推荐
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Likeotherformsoflifeonthisplanet,humanbeingsfaceabasictask:to
Themainreasonforthespreadingofthediseaseisn’tsomuchafallinliving
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheyc
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheyc
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheyc
Onereasonhumanbeingscanthriveinallkindsofclimatesisthattheyc
随机试题
Weregrettoinformyouthatthematerialsyouorderedare______.A、outofworkB
Sugarlessyoghurt(酸奶)couldhelpbeatbadbreath,toothdecayandgumdisea
审查M材料成本差异,月初借方余额30万元,本月借方和贷方发生额分别为270万元、
沥青的针入度越大,反映沥青的感温性越小。()
CC的促排卵作用是A.促垂体分泌LH及FSH B.促卵巢分泌E C.有弱雌激
伤寒肠出血常发生的时期是A.潜伏期 B.初期 C.极期 D.缓解期 E.
下列属于五环三萜的人参皂苷为A.人参皂苷ReB.人参皂苷RfC.人参皂苷RcD.
下列哪项不属再次免疫应答的特点A.抗体亲和力增高 B.以B细胞为主的APC
A.平均数 B.标准差 C.标准误 D.可信区间 E.离散比抽样调查中用
下列关于肛裂的叙述,哪项是正确的?A.肛裂是肛管部深达肌层的小溃疡 B.肛裂、
最新回复
(
0
)