()定位方法是网络通过跟踪GPS卫星信号,解调出GPS导航信息,并将这些导航信息提供

题型:单项选择题

问题:

()定位方法是网络通过跟踪GPS卫星信号,解调出GPS导航信息,并将这些导航信息提供给移动台。移动台根据这些信息,可以缩短GPS搜索时间,更快地完成定位操作。

A.传统GPS定位方法

B.相对定位/差分定位DGPS

C.网络辅助的GPS定位方法AGPS

D.AFLT

考点:通信工程师C网电信认证C网电信认证题库
题型:单项选择题

阅读理解。

      Chopin (肖邦) was born in March, 1810 near Warsaw (华沙) in Poland (波兰). He was one of the

greatest musicians in the world. In 1831, when he went to Paris, no people but he could play the piano

very well.

      At that time people in Paris liked the Hungarian (匈牙利) pianist liszt (李斯特). One night, at a concert,

Liszt went to the piano and all the people shouted. As all the lights in the concert were turned off, a

wonderful piano concert started. The music was so good that the listeners were all greatly interested. They

kept praising the pianist and thought that Liszt reached something new in playing the piano. 

     Suddenly, all the lights were turned on again as the music came to an end. And there stood a young man

instead of the famous Hungarian pianist Liszt. 

     Liszt planned all this. As the lights went out, Liszt left his chair and let Chopin take his place. So with

the help of Liszt and his own talent (才能), Chopin soon became famous.

1. Chopin was            . [ ]

A. the greatest musician in the world

B. a famous Polish pianist

C. a famous Paris pianist

D. one of the greatest musicians in Hungary.

2. The wonderful piano concert started            .

[ ]

A. after all the lights were turned on

B. when Liszt sat down at the piano

C. after all the lights were turned off

D. when Chopin went to piano.

3. When the music came to an end,            . [ ]

A. Liszt stood at the piano

B. all the lights were turn off again

C. Chopin stood at the piano

D. people went out of the hall

4. Chopin became famous            . [ ]

A. before he came to the concert

B. because he was a student of Liszt's

C. because people in Paris liked him

D. since he played so well at the concert

5. From the story we know             . [ ]

A. Chopin could be famous because of his own talent and the help from Liszt

B. Liszt planned to make Chopin famous

C. Liszt was Chopin's teacher

D. one could be famous only with the help of a famous pianist

题型:单项选择题

设计本身是一种()过程。

题型:单项选择题

下列方法中,不属于软件调试方法的是( )。

A.回溯法

B.强行排错法

C.集成测试法

D.原因排除法

题型:单项选择题

基层铺设中,碎石垫层和碎砖垫层厚度不应小于50mm。( )

题型:单项选择题

新架挂光(电)缆与杆上原光(电)缆设施的间距为()。

A.300mm

B.400mm

C.500mm

D.600mm

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