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
考研
The (1)_____ of the fluorescent tube (2)_____ a major revolution in the development of better and cheaper lighting. First shown
The (1)_____ of the fluorescent tube (2)_____ a major revolution in the development of better and cheaper lighting. First shown
admin
2011-10-20
67
问题
The (1)_____ of the fluorescent tube (2)_____ a major revolution in the development of better and cheaper lighting. First shown at the New York and San Francisco World (3)_____ in 1939, this more efficient, more diffuse, longer-lived lamp has been (4)_____ improved, so that slowly it (5)_____ the supremacy of the incandescent household globe. The fluorescent tube (6)_____ Australian homes, shops and factories today is seven or eight times (7)_____ the tubes that brought shadow-free lighting to many of Britain’s wartime factories. Its (8)_____ too, is much greater—from 2,000 hours in 1940 to mc/re than 7, 500 hours today.
But (9)_____ its (10)_____ use for more than 30 years, the fluorescent tube remains a
(11)_____ to many of its users. It is built (12)_____ a completely different (13)_____ from the incandescent light. In the incandescent bulb, a tungsten wire (14)_____ than a human hair, is brought to white-hot temperature by passing an electric (15)_____ through it. In the fluorescent tube a stream of electrons bombards a gas containing mercury, (16)_____ invisible ultraviolet radiation. The ultraviolet rays hit the fluorescent coating that (17)_____ the tube, (18)_____ it to grow. A 40 watt fluorescent tube gives twice as much light as a 100.watt tungsten globe, (19)_____ about five times as long, and runs cool enough to (20)_____ higher levels of light.
选项
A、leading to
B、resulting from
C、resulting in
D、bringing in
答案
C
解析
该句意为,在荧光管中,一束电子流轰击含有水银的气体,产生看不见的紫外线。resulting in"产生,导致",这里为分词短语作状语表示同时发生的动作。
转载请注明原文地址:https://kaotiyun.com/show/RHp4777K
0
考研英语一
相关试题推荐
Extraordinarycreativeactivityhasbeencharacterizedasrevolutionary,flyinginthefaceofwhatisestablishedandproducing
Intheeyesofvisitorsfromtheoutsideworld______Itcouldbeinferredfromthelastparagraphthat______
ItcanbeinferredthatAmericansbeingapproachedtocloselybyMiddleEasternerswouldmostprobably______Theauthor’sinten
Beautyhasalwaysbeenregardedassomethingpraiseworthy.Almosteveryonethinksattractivepeoplearehappierandhealthier,h
Economistsbelievethatjobearningsinfluencechoiceofoccupation.Theyacknowledgethatpeopleplacevaryingemphasis【C1】____
Intheirlettertothestudents’representativeassembly,thefreshmeninsistedon______intheStudentUnion.
Theneedtogotocollegeisrealized,______offersopportunitiesforbettercareers.
YourfriendMaryBrownwillgotoWashingtonD.C.nextmonth.WritealettertoTonywhoisthereandintroduceMarytohim.You
随机试题
A.孢子B.芽孢C.两者均是D.两者均否与耐热性有关的是()
下列关于表述法的效力的选项哪个是正确的?()
某钢筋混凝土框架结构的顶层框架梁,混凝土强度等级C30,纵筋采用HRB400级钢筋,试问,该框架顶层端节点处梁上部钢筋的最大配箍率,与下列()项数值最为接近。
某水库枢纽工程主要由大坝及泄水闸等组成。大坝为壤土均质坝,最大坝高15.5m,坝长1135m。该大坝施工承包商首先根据设计要求就近选择某一料场,该料场土料黏粒含量较高,含水量较适中。在施工过程中,料场土料含水量因天气等各种原因发生变化,比施工最优
凡是有价证券都是我国《票据法》上所指的票据。()
2019年3月11日,甲上市公司公告《公开发行公司债券募集说明书》,主要内容如下:(1)本期债券发行规模为10亿元;票面利率区间为4.8%~5.6%。(2)发行人最近一期期末的净资产为680042.72万元;发行人最近3个会计年度实现的
导游要确立在旅游团中的主导地位是由()决定的。
从2017年起,国防生不再从()中招生。
设有定义:intn=1234;doublex=3.1415;则语句printf("%3d,%1.3f\n",n,x);的输出结果是()。
A、Themanhasmadealotoffriendsthroughthenetwork.B、Thewomanenjoystalkingtostrangersonanetwork.C、Themanthinks
最新回复
(
0
)