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
Two system of weights and measures exist in the U. S. today: the U. S. Customary System and the International System of Units (I
Two system of weights and measures exist in the U. S. today: the U. S. Customary System and the International System of Units (I
admin
2013-11-29
49
问题
Two system of weights and measures exist in the U. S. today: the U. S. Customary System and the International System of Units (IS, after the initials of International System). IS, commonly referred to as the metric system, is actually a more complete, coherent version of it. Throughout U. S. history, the Customary System (inherited from, but now different from, the British Imperial System) has been customarily used; a plethora of federal and state legislation has given it, through implication, standing as the primary weights and measures system. The metric system, however, is the only system that Congress bus ever specifically sanctioned. An 1866 law reads:
It shall be lawful throughout the United States of America to employ the weights and measures of the metric system; and no contract or dealing or pleading on any court, shall be deemed invalid or liable to objection because the weights or measures expressed or referred to therein are weights or measures of the metric system.
Since that time, use of the metric system in the U. S. has slowly and steadily increased, particularly in the scientific community, in the pharmaceutical industry, and in the manufacturing sectorthe metric system is now predominantly used.
On Feb. 10, 1964, the National Bureau of Standards (now known as the National Institute of Standards and Technology) issued the following bulletin:
Henceforce it shall be the policy of the National Bureau of Standards to use the units of the International system (iS), as adopted by the 11th General Confference on Weights and Measures (October 1960), except when the use of these units would obviously impair communicator or reduce the usefulness of a report.
On Dec. 23, 1975, Pres. Gerald R. Ford signed the Metric Conversion Act of 1975. It defines the metric system as being the International System of Units as interpreted in the U. S. by the secretary of commerce.
The Trade Act of 1988 and other legislation declare the metric system the preferred system of weights and measures for U. S. trade and commerce, call for the federal government to adopt metric specifications, and mandate the Commerce Dept. to oversee the program, the conversion process is currently underway: however, the metric system has not become the system of choice for most American daily use.
The following seven units serve as the base for the International System: length-meter; masskilogram; time second; electric current-ampere; thermodynamic temperature-kelvin; amount of substance-mole; and luminous intensity-candela
Which unit belongs to the Customary System?
选项
A、meter
B、kilogram
C、second
D、foot
答案
D
解析
根据文章最后一段的内容知,选项A、B和C都是the International System中的单位,故只有选项D属于the Customary System。
转载请注明原文地址:https://kaotiyun.com/show/bXhO777K
0
考博英语
相关试题推荐
AmericaLosesaGreatPublicThinkerArthurMiller’sdeathlastweekmeantmorethanthelossofanoutstandingplaywright.
Thelawofprivateinternationaltribunalswithrespecttoconflictsofinterestofarbitratorsisquiteextensive,albeitbyno
Thelawofprivateinternationaltribunalswithrespecttoconflictsofinterestofarbitratorsisquiteextensive,albeitbyno
Thelawofprivateinternationaltribunalswithrespecttoconflictsofinterestofarbitratorsisquiteextensive,albeitbyno
Variousinnovationshavebeenintroducedaswaystobreakoffoursystemwhichforcesstudentsthroughaseriesofidenticalcla
Variousinnovationshavebeenintroducedaswaystobreakoffoursystemwhichforcesstudentsthroughaseriesofidenticalcla
Allsortsoftechnologyhave______tomakethenewmedicalsystemsappliedinruralareasefficientandeffective.
Youshouldspendabout20minutesonthistask.Yourentahousethroughanagency.Theheatingsystemhasstoppedworking:
Theincreaseinglobaltrademeansthatinternationalcompaniescannotaffordtomakecostlyadvertisingmistakesiftheywantt
MorethanhalfofallJewsmarriedinU.S.since1990havewedpeoplewhoaren’tJewish.Nearly480,000Americanchildrentrader
随机试题
大气压的单位只能是帕。
某公司股东大会批准董事会的投资权限为1亿元,董事会授权总经理负责实施,总经理决定由公司证券部负责总额在1亿元以下的股票买卖。该公司还规定:公司划入大夏证券公司的款项由公司证券部申请,由会计部审核,总经理批准后划转入该公司在大夏证券公司开立的资金账户。经总经
pH与pKa,和药物解离的关系为:
患者女,67岁。大便呈扁状,进行性加重8个月,现出现大便排出困难,无疼痛,无血便。B超提示盆腔肿瘤。术中见盆腔腹膜外、直肠与阴道壁之间10cm×8cm肿块,包膜完整,与直肠有粘连,包膜内有渗出液。病理大体所见:碎组织,大者6cm×4cm×4cm,切面灰黄色
女,36岁。发热胸痛5天。见发热,胸痛,咳吐腥臭脓血痰,舌红苔腻,宜选用的主药为
通过技术经济指标的对比,检查目标的完成情况,分析产生差异的原因,进行挖掘内部潜力的方法是()。
1970年4月24日,我国发射了第一颗人造卫星()。
部门规章与地方政府规章之间对同一事项的规定不一致时,适用部门规章的规定。()
下列有关文学常识的表述,不正确的是()。
2009年6月16,中国、俄罗斯、()等“金砖四国”领导人在俄罗斯叶卡捷琳堡举行会晤。
最新回复
(
0
)