首页
登录
职称英语
Hardly anyone pays much attention to the air. It is【B1】______ , and we never
Hardly anyone pays much attention to the air. It is【B1】______ , and we never
游客
2023-07-29
27
管理
问题
Hardly anyone pays much attention to the air. It is【B1】______ , and we never feel it unless a strong wind【B2】______ along, blowing things around. But even though we are rarely【B3】______ of it, the air is always around us. It is an amazing and very powerful substance, with【B4】______ that few people know anything about.
We live in a world that is always in【B5】______ . Even still air and ice and solid rock are【B6】______ with movement. This movement is the dancing of the tiny molecules that make up all matter. The molecules, in mm are made up of still tinier atoms, which are the smallest units of【B7】______ .
In air, which is a mixture of gases, this dance takes the form of a flee-for-all, in which【B8】______ molecules move at a speed of nearly 250 miles an hour and bump into other molecules five thousand million times a second.【B9】______ . Usually we don’t feel this pressure because it is equaled by pressure from inside our bodies.
In fact,【B10】______ . At this very minute, your body is supporting 14 tons of air pressure.
【B11】______ . We can rarely see this water, but it is there just the same, like a huge ocean over our heads. [br] 【B11】
选项
答案
Another interesting thing about air is that it contains at all times large quantities of water vapor
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2879934.html
相关试题推荐
____________(这是一个生死攸关的问题)andthereforewemustpaymoreattentiontoit.Thisi
Time,asweknowit,isaveryrecentinvention.Themodemtime-senseishardly
Time,asweknowit,isaveryrecentinvention.Themodemtime-senseishardly
Time,asweknowit,isaveryrecentinvention.Themodemtime-senseishardly
Time,asweknowit,isaveryrecentinvention.Themodemtime-senseishardly
Time,asweknowit,isaveryrecentinvention.Themodemtime-senseishardly
Sheismarrying____________(她不了解的人).amanshehardlyknows/amansheknowsnot
[originaltext]Thirtyyearsago,anyoneblaminglonelinessforphysicalilln
Thepartoftheenvironmentalmovementthatdrawsmyfirm’sattentionisthe
Thepartoftheenvironmentalmovementthatdrawsmyfirm’sattentionisthe
随机试题
Theyoungwomanstilldenies______(在考试中作弊).cheatinginexamination/thatshech
Withinthatexclusivegroupofliterarycharacterswhohavesurvivedthrough
Theplayer’scareerishangingbya______afterthislatestinjurytohisknee.A
There______nothingmorefordiscussion,themeetingcametoanendhalfanhou
Thestandardofficialretirementagetoqualifyforapublicpensioninmost
下列关于公钥体制中说法不正确的是( )。A.在一个公钥体制中,一般存在公钥和密
下面有关哮喘特征的描述中不准确的是A.不同程度的可逆性气道阻塞 B.可自行缓解
骨肉瘤的临床表现,下列哪项不对()A.局部疼痛,夜间尤甚 B.肿瘤表面皮温
关于柱式墩台施工要求,正确的有()。A、墩台柱与承台基础接触面应凿毛处理,清除
根据《城乡规划法》的规定,由城乡规划主管部门依法对建设项目选址、建设用地、建设工
最新回复
(
0
)