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
Accurate Timer These days time is everything. Between meetings and appointments, deadlines and conference calls, my schedule
Accurate Timer These days time is everything. Between meetings and appointments, deadlines and conference calls, my schedule
admin
2012-09-10
58
问题
Accurate Timer
These days time is everything. Between meetings and appointments, deadlines and conference calls, my schedule requires that I know the time down to the minute. Even on weekends, I have a football team to coach, shows to tape and planes to catch. If I’m late, I’m sunk. The problem is that it’s hard if my clocks aren’t correct. Even the digital clocks can display time inaccurately. Dead batteries, time changes, any of these can cause a clock to be inaccurate. Now there is no need to worry, because advanced radio technology has produced a clock which gets the time directly from the U.S. Atomic Clock in Fort Collins, Colorado, the standard for time-keeping all over the world. The Atomic Clock by Acorn is the most accurate, reliable and convenient timepiece you can have.
Every morning at 1:00 a. m, this "smart" clock in Colorado automatically resets itself to the exact hour, minute and second. The U. S. Atomic Clock is accurate to ten billionths of a second per day. This means that the clock deviates less than one second over a one million-year period. The Atomic Clock even adjusts automatically for daylight saving time, so you don’t have to remember to "spring forward" or "fall back". The desktop clock model is the only atomic Clock that will not lose time with low power or when you change its batteries.
The most accurate clock in the world is of no use if it is difficult to operate. The Acorn Atomic Clock is engineered in Germany using the latest scientific technology. It comes in two styles, the wall clock and the desktop model. Both are designed to be functional and easy to use. The desk clock’s display features the exact time (in hours, minutes and seconds), month and date, or you can choose to display any two U. S. or world time zones. It weighs only eight ounces, and is the perfect travel clock It also has dual alarms, perfect for couples. Both the desktop and the wall models have an internal antenna for good reception without unattractive wires.
The U.S. Atomic Clock is so accurate that______.
选项
A、it gains only a second in a million years
B、its deviation is within a second in a million years
C、it loses only a second in a million years
D、its deviation can never be detected
答案
B
解析
本题考查考生对细节的把握。考的是艾克瑞恩制作的原子钟计时的精确程度。答案的线索在第二段第二、三句话:The U. S. Atomic Clock is accurate to ten billionths of a second per day. This means that the clock deviates less than one second over a one-million-year period. 所以,正确答案是B。
转载请注明原文地址:https://kaotiyun.com/show/rhQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
DangersAwaitBabieswithAltitudeWomenwholiveintheworld’shighestcommunitiestendtogivebirthtounderweightbabie
BaselineExamIsKeytoEyeHealthEvenpeoplewithnosignsorriskfactorsforeyediseasecansuffervisionlossandneed
PanicApanicisaformofcollectiveinwhichagroupofpeople,facewithanimmediatethreat,reactinanuncoordinateda
Jimhasmadeuphismindnottogotothemeeting.
Theyshouldnotsacrificeenvironmentalprotectionstofostereconomicgrowth.
Allhouseswithin100metresoftheseasareatriskofflooding.
Thewayonelooks,talksandmovesdependsBrothersandsistersoftenlookabitdifferentfromeachotherbecause
MoviesMoviesarethemostpopularformofentertainmentformillionsofAmericans.Theygotothemoviestoescapetheirno
TooPoliteforWordsAJapanesecolleaguetheotherdaywastalkingaboutameetingwithamanwhomsheabruptlydescribedu
CharlieChaplinCharlieChaplinwasbornonApril16,1889inLondon.Hisfatherwasanentertainerandalthoughnotoneof
随机试题
女性,23岁,诊断为1型糖尿病5年。近几日来,感食欲减退、烦渴、多饮、多尿明显,时有呕吐,皮肤弹性差。化验室检查:空腹血糖24.7mmol/L,尿糖阳性,尿酮体强阳性,血碳酸氢根14mmol/L。以下何组治疗方案最合理
男性,40岁,无明显原因突发全身皮肤和巩膜黄染,且逐渐力口重,大便呈陶土色,皮肤瘙痒,无发热。首先考虑的疾病是
设备及管道表面金属热喷涂工艺流程正确的顺序是()。
在政府采购中,如果需要采用公开招标以外的采购方式的,必须在采购活动开始前获得地级以上政府采购监督管理部门的批准。()
使人类学缓慢成长的另一个重要因素是,欧洲人只是逐渐认识到,在所有这些差异的掩饰下,他们可能与任何地方的人共享基本的“人性”。不与欧洲人共享基本文化价值的社会被贴上“未开化的”或“野蛮的”标签。直到18世纪中叶,相当多的欧洲人才开始认为这类人的行为与他们自身
按照监督主体的不同,公安执法监督可以分为()。
在史前夏商时期,以鼎、觚、爵为代表的大型青铜礼器,以璧、圭、琮、璋等为代表的精美玉器,一般应为国王、贵族或最高统治者所拥有的“重器”,可作为判断遗址性质的参考标准。一个大型遗址一旦发现有使用此类物品的迹象,那么其性质很可能与都邑有密切关系。但由于青铜器、玉
2016年度的诺贝尔文学奖被颁给了世界著名的民谣歌手(),以奖励他“在伟大的美国民谣传统中创造出新的诗歌意境。”
Americanwomenexperienceagreat【C1】______oflifestyles.A"typical"Americanwomanmaybesingle.Shemayalsobedivorcedor
Forthispart,youareallowed30minutestowriteashortessaybasedonthepicturebelow.Youshouldstartyouressaywitha
最新回复
(
0
)