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
Some people say radio was invented by Marconi of Italy. Marconi sent the first radio communication(1)______through the air in 18
Some people say radio was invented by Marconi of Italy. Marconi sent the first radio communication(1)______through the air in 18
admin
2013-09-09
17
问题
Some people say radio was invented by Marconi of Italy. Marconi sent the first radio communication(1)______through the air in 1895. In fact, no one person can be called the(2)______of radio. Many people, including several Americans, helped to(3)______radio. You may not know their names. However, their work(4)______many people.
Over the years, radio has become one of the most important(5) ______of communication. It can be used for two-way communication, such as between a ship and land.(6)______even use radio to communicate into space. And radio(7)__let people send words, music and information to any part of the world.
The first(8)______radio broadcasts in the United States were made in the early nineteen hundreds. One of the first broadcasts came from the Metropolitan Opera House(大都会歌剧院)in New York City in 1910. It included music by the great singer Enrico Caruso. An American inventor, Lee De Forest developed some of the technology used in early radio.(9)______
His most famous invention was the vacuum tube, or electron tube.(10)______. The device made it possible to strengthen radio signals and to send them over long distances. (11)______.
(2)
Some people say radio was invented by Marconi of Italy. Marconi sent the first radio communication(1)signals through the air in 1895. In fact, no one person can be called the(2)inventor of radio. Many people, including several Americans, helped to(3)develop radio. You may not know their names. However, their work(4)affected many people.
Over the years, radio has become one of the most important(5)forms of communication. It can be used for two-way communication, such as between a ship and land.
Scientists even use radio to communicate into space. And radio (7)broadcasts let people send words, music and information to any part of the world.
The first(8)experimental radio broadcasts in the United States were made in the early nineteen hundreds.
One of the first broadcasts came from the Metropolitan Opera House(大都会歌剧院)in New York City in 1910. It included music by the great singer Enrico Caruso. An American inventor, Lee De Forest developed some of the technology used in early radio.(9)During his lifetime, he invented hundreds of devices that were used in telephones, shortwave radio broadcasts, and similar technology.
His most famous invention was the vacuum tube, or electron tube.(10)In 1906, the electron tube was considered the single most important development in electronics. The device made it possible to strengthen radio signals and to send them over long distances.(11)It was a major reason for the fast growth of the electronics and communications industries in the early 20th century.
选项
答案
inventor
解析
转载请注明原文地址:https://kaotiyun.com/show/YO07777K
0
大学英语四级
相关试题推荐
VeryfewpeopleinhistoryhaveleftarecordasclearasJohnAdams.He【C1】______asmallbookwithhimeveryday【C2】______hewr
VeryfewpeopleinhistoryhaveleftarecordasclearasJohnAdams.He【C1】______asmallbookwithhimeveryday【C2】______hewr
Inrecentyears,therehasbeenanincreasingawarenessoftheinadequaciesofthejudicialsystemintheUnitedStates.Costsa
Itispossibletolearnsomethingaboutmusicthroughbriefcontactwithit,butwithoutthebenefitofformalinstruction.Peop
Itispossibletolearnsomethingaboutmusicthroughbriefcontactwithit,butwithoutthebenefitofformalinstruction.Peop
A、Theultimatecontentremainsthesame.B、Thevitamincontentisreduced.C、Thefoodbecomespoisonous.D、Vitaminisaddedtot
Thegrizzled,tough-lookingcartooncharacterwarnedAmericansnottochangetheirfoodhabits.Workingwomendon’thaveenough
Thegrizzled,tough-lookingcartooncharacterwarnedAmericansnottochangetheirfoodhabits.Whole-graincerealsandhigh-fi
I’mnotaconspiracy(阴谋)theoristoranything,butImustadmitthatthose(26)______ofthemoonlandingmakemedoubtful.Imean
I’mnotaconspiracy(阴谋)theoristoranything,butImustadmitthatthose(26)______ofthemoonlandingmakemedoubtful.Imean
随机试题
降低输血过敏反应发生率的措施是
由于人们的修养不同和表达能力的差别,对于同一思想事物的表达有清楚和模糊之分,这样的沟通障碍属于()。
监理单位应当代表()对施工过程中的安全生产情况进行监督检查。
下列属于建筑安装工程直接工程费中材料费的有()。
QDII使得内地居民可以投资于境外资本市场。()
阅读下面材料,回答问题。在优秀班主任报告会上,有人这样总结古老师的教育工作:一个新生小磊刚刚转来,不喜欢说话,下课后也不和其他的同学一起去玩,上课时注意力不集中,学习成绩一般。于是,在课间活动中,古老师领着这个学生和其他学生们一起玩“老鹰捉小鸡”的游
《教师资格条例》规定,对符合认定条件的,应当在受理期限终止之日起()内颁发相应的教师资格证书。
下列关于声调说法有误的一项是()。
Whatattractscustomers?Obviouslythequalityofaproductdoes,butvisualimages【61】agreatdeal.Itisnotonlytheimagepr
A、Anadvertisementinthepaper.B、Thedetailsofapossiblejob.C、Asmallfirmofconsultantengineers.D、Aninterviewforwai
最新回复
(
0
)