为了解决信息安全服务问题,中国国际电子商务中心正在实施( )项目,将提供数据加密和电子签名的电子证书,为政府对企业的管理,企业与企业的商务交往提供安全保障。

为促进中部地区（山西、江西、河南、湖北、湖南和安徽六省）经济快速发展，中共中央提出了“中部崛起”的战略。以下关于中部六省的说法，错误的是（）。

A．4000多年前，河南为中国九州中心之豫州，故简称“豫”，且有“中州”“中原”和“中土”之称
B．湖北省，简称鄂，位于我国中南部，长江中游。因地处巢湖以北，故称“湖北”
C．山西位于太行山以西，黄河以东。山西之名，因居太行山之西而得名。自古被称为“表里山河”
D．湖南省位于长江中游南部，境内湘江贯穿南北，简称为湘，据传，湘江流域过去多植芙蓉，因此湖南又有“芙蓉国”之称

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Television broadcasts are 【C1】______ to an area that is within the 【C2】______ of the sending station or its relay (中转站). 【C3】______ television relays are often placed on hills and mountains so that they can 【C4】______ a wider region, they still can not cover more land than one from the hilltop 【C5】______ a clear day. However, the rays also go out into the atmosphere, 【C6】______ there is a relay station on a satellite that 【C7】______ around the earth, it can send the pictures to any point on the earth from which the satellite is 【C8】______ . Three satellites 【C9】______ turning around over the equator (赤道) send any television program to any part of the earth. 【C10】______ makes it possible for world 【C11】______ of newspapers to give the news in all countries at the same time. 【C12】______ it may be possible for a subscriber (户) to a televised newspaper to 【C13】______ a button and see a newspaper page 【C14】______ his television screen. He could also decide when he wants the page 【C15】______ , 【C16】______ , by dialing different numbers such as 【C17】______ on a telephone dial, he could choose the language or the edition of the paper he wants to read. It seems strange to think that, even today, methods of the 【C18】______ are not entirely useless. For example, sometimes 【C19】______ agencies which use radio also use pigeons to 【C20】______ messages between offices in large cities because the pigeons are not bothered by traffic problems.【C1】______A．limitedB．boundedC．prohibitedD．shifted

A.
B.
C.
【C1】______
A．limited
B．bounded
C．prohibited
D．shifted

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