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
Computer Mouse The basic computer mouse is【C1】______amazingly clever invention with a relatively simple design that allows u
Computer Mouse The basic computer mouse is【C1】______amazingly clever invention with a relatively simple design that allows u
admin
2014-09-13
63
问题
Computer Mouse
The basic computer mouse is【C1】______amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive. Think of all the things you can do with a mouse like selecting text for copying and pasting, drawing, and even scrolling(滚动)on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it【C2】______until it gets dirty and we have to learn how to【C3】______it. We learn to point at things【C4】______we learn to speak, so the mouse is a very natural pointing device. Other computer pointing devices include light pens, graphics tablets and touch screens, but the mouse is still our workhorse.
The computer mouse was【C5】______in 1964 by Douglas Englehart of Stanford University. As computer screens became more popular and arrow keys were used to move around a body of text, it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful. The introduction of the mouse, with the Apple Lisa computer in 1983, really started the computer public on the road to relying on the mouse【C6】______routine computer tasks.
How does the mouse work? We have to start at the bottom, so think upside down for now. It all starts with the mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad, it presses against and turns two shafts(轴). The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices【C7】______light-emitting diodes(LED)mounted on either side. One LED sends a light beam to the LED on【C8】______side. As the wheels spin and a hole rotates by, the light beam gets through to the LED on the other side. But a moment【C9】______the light beam is blocked until the next hole is in place. The LED【C10】______a changing pattern of light, converts the pattern【C11】______an electronic signal, and sends the signal to the computer through wires in a cable that goes out of the mouse body. This cable is the tail that helps give the mouse its name. The computer interprets the signal to tell it where to position the cursor on the computer【C12】______.
So far we have only discussed the basic computer mouse that【C13】______of you probably have or have used. One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up dirt.【C14】______you have to clean your mouse. The newer optical mice【C15】______this problem by having no moving parts.
【C14】
选项
A、Completely
B、Eventually
C、Specially
D、Particularly
答案
B
解析
鼠标变脏后,最终要清理,这里用eventually来表示。completely完全地,彻底地;eventually最后地,最终地;specially特别地,特意地;particularly特别,尤其。根据题意,应选B。
转载请注明原文地址:https://kaotiyun.com/show/XHQd777K
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
A.BreakthenewsascalmlyaspossibletochildrenB.BreakthenewsatyourownpaceC.Sharethegoodnewswithyourfriends
CrystalEarOnedayafriendaskedmywifeJillifIwantedahearingaid."Hecertainlydoes,"repliedJill.Afterhearinga
Lookingtohelptheenvironment?Considerthefollowingsimpleideas.Turnoffelectricaldeviceswhenthey’renotbeinguse
Americansstillhavebeengainingweight,althoughtheyhavecuttheiraveragefatintakefrom36to34percentoftheirtotald
AinyourbodyBwithoutwaterCbeforelongDforachangeEonabusydayFtoyourweightDon’tforgettodrinkenoughwater
AinyourbodyBwithoutwaterCbeforelongDforachangeEonabusydayFtoyourweightTheamountofwateryourbodyneed
CosmeticsurgeryismorepopularintheUSthananywhereelse.Therearehardlyanyrisksinvolvedincosmeticoperations.
The20patientshadstemcellinjectionsinsteadofsurgery.Stemcelltherapyseemstohavegreatprospects.
SaunaCeremonial(仪式性的)bathinghasexistedforthousandsofyearsandhasmanyforms,oneofwhichisthesauna.TheFinnsha
随机试题
患者,男性,45岁。被车撞伤4小时,右上腹痛。查体:血压80/60mmHg,脉搏120次/分,右肋见皮擦伤,右上腹压痛明显,全腹轻度肌紧张,移动性浊音阳性,肠鸣音减弱,尿色正常。患者治疗措施应为
右冠状动脉营养部位包括()。
拌和现场进行沥青混合料抽检的目的不是为了检验()。
银行本票可以是即期的,也可以是远期的。()
任何补贴行为,都应该被征收反补贴税。()
《义务教育数学课程标准(2011年版)》指出教学活动是师生积极参与、交往互动、共同发展的过程。教学中应该注意的几个关系是什么?
学制
我国宗教信仰自由政策的实质是:
Neuroscientistshavelongunderstoodthatthebraincanrewireitselfinresponsetoexperience—aphenomenonknownasneuroplast
Duringthetraditionalweddingceremony,thebridalcouplepromiseseachotherlifelongdevotion.Yet,aboutoneoutoffourAme
最新回复
(
0
)