首页
登录
职称英语
Despite the ubiquity of computer technology, most people are unaware that
Despite the ubiquity of computer technology, most people are unaware that
游客
2024-01-11
65
管理
问题
Despite the ubiquity of computer technology, most people are unaware that
Line computers exist in two mutually exclusive, distinct categories: analog and digital.
We are most familiar with digital computers, such as laptops. On the one hand,
digital computers process information using a binary number system that allows
(5) them to calculate numbers in an accurate and exact manner. Analog computers,
on the other hand, do not calculate per se; they measure and respond to a
continuously changing input.
Simple analog computers, called astrolabes, were first developed by the
Greeks to solve problems in astronomy. The devices proved very popular and
(10) soon spread throughout the Roman world. By the 10th century, Muslim scholars
had developed the astrolabe into a sophisticated mechanical device capable of
calculating solutions to problems not only in astronomy, but also in astrology,
navigation, surveying, and timekeeping.
Modern scientific opinion was that the ancient Greeks had been
(15) technologically unable to produce a similarly sophisticated computer, until a
discovery was made just over a century ago. In 1900, divers discovered the wreck
of a merchant ship, possibly dating back to 150 BCE, off the coast of the Greek
island Antikythera. In the wreckage, they found the remains of a complex device
apparently a thousand years ahead of its time.
(20) Made of metal, this device, known as the Antikythera mechanism, is
approximately the size of a shoebox. At the time of its discovery, it was in terrible
shape, having been underwater for so long. Its pieces had merged into a broken
mass and experts could discern only that it had something to do with astronomy.
Thanks to a combination of advanced imaging methods and X-ray computer
(25) tomography, however, scientists have since discovered much more.
Originally, the mechanism had at least 30 bronze gears with as many as 225
hand-cut triangular teeth. It had three main dials, one on the front and two on the
back, respectively marking the astronomical divisions of the Egyptian calendar,
the Metonic cycle, and the Saros cycle. Each dial had subdials for greater
(30) specificity. For example, the front dial contained a smaller dial that could be
adjusted to account for leap years. There were also hands and gearing to account
for the movements of the planets.
While the workings of the device are now fairly well understood, researchers
are still puzzled by the reason it was made. Some postulate that it, like later
(35) astrolabes, was used to create astrological charts, or to set feast days, or even to
adjust the lunar and solar calendars. Others have thought it was a curiosity made
solely for display. The device’s relatively small size and the inclusion of a 3,000
character "user’s manual" suggest that the mechanism was created to be portable
and functional, but scientists are no closer to knowing for sure and can only
(40) wonder at the purpose of its superb design. [br] The passage’s statement that, by the 10th century, Muslim scholars had developed the astrolabe into a sophisticated mechanical device would justify which of the following conclusions?
选项
A、Muslim scholars were unaware of other scientific measuring devices.
B、Muslim scholars developed a kind of technology that had never been known before.
C、There was no need for sophisticated mechanical devices such as the astrolabe before the 10th century.
D、The astrolabe’s sophistication allowed for more exploration of the physical world.
E、Muslim scholars had a need to solve complex problems in astronomy, navigation, surveying, and timekeeping.
答案
E
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3352320.html
相关试题推荐
Twinsoftencomplainthatpeopletendtotreatthemasapair,______asindividu
Duringthelastthreedecadesthenumberofpeopleparticipatinginphysicalfit
EventhoughI’mquitea______person,Ilikemeetingpeople.A、preservedB、conserv
It’swrongtojudgepeopleonlyaccordingtotheirfamily______.A、basisB、area
Thebestwayto______thisgoalistointroducenewadvancedtechnology.A、crossB
Childrenandyoungpeopleareattheheartofsociety.Agoodeducationenabl
Ifyouassociatewithsuchpeople.I’mafraidyou______serioustrouble.A、arehe
______workhasbeendonetoimprovepeople’slivingstandard.A、ManyB、Agreatm
Stupidpeopleoftenfinditdifficultto______theirprejudices.A、giveinB、give
Computertechnologyisadvancingsofastthatoldhardwarequicklybecomesco
随机试题
MilkinsCorporationwillnegotiateatwo-yearemployment______withtheformervi
Ifthewoundedsoldierhadbeengivenfirst______,hewouldnothavedied.A、help
[originaltext]W:Helpmewiththisstackofbooks,willyou,Jack?M:Helpyou!
Newtechnologylinkstheworldasneverbefore.Ourplanethas【B1】______.It
A.天王补心丹 B.酸枣仁汤 C.归脾汤 D.桑螵蛸散 E.六味地黄丸肝
目前临床上使用的烷化剂不包括A.氮芥类B.乙撑亚胺类C.磺酸酯及多元卤醇类D.亚
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是
商业助学贷款的贷款审批人审查的内容包括()。A.借款申请人资格是否具备 B.
(2018年真题)期货公司应当按照监控中心的规定以()方式在公司总部集中统
存款人日常经营活动发生的资金收付以及工资、奖金的支付,都应该通过()办理。A、银
最新回复
(
0
)