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【题目】2009年4月15日零点16分,中国在西昌卫星发射中心用长征三号丙运载火箭,成功将第二课北斗导航卫星送入预定轨道,它的成功发射,对于北斗卫星导航系统的建设具有十分重要的意义。中国北斗的问世和不断完善,将逐步打破美国GPS一统天下的局面。据此回答下列问题。

【1】有关北斗导航系统的叙述,正确的是(

A.北斗导航系统的关键装置是传感器

B.是一种专门处理空间数据的计算机系统

C.具有全能性、全球性、全天候、连续性、实时性的特点

D.广泛应用于资源、环境监测、自然灾害防御监测等

【2】下列不属于卫星定位技术应用范畴的是(

A.野外考察时用以空间定位

B.为行驶的汽车提供精密的速度、时间信息

C.为飞行的民航客机提供三维坐标

D.为无线移动电话用户提供实时的通信业务

【答案】

【1】C

【2】D

【解析】

试题分析:

【1】北斗导航系统属于全球定位系统---GPS。其特点是具有全能性、全球性、全天候、连续性、实时性的特点。故选C。

【2】为无线移动电话用户提供实时的通信业务的是互联网,不属于卫星定位技术,故选D。

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