33dBm的发射功率经过3dBm的衰减器后,则其对应的功率为()A.5W B.3W

题型:单项选择题

问题:

33dBm的发射功率经过3dBm的衰减器后,则其对应的功率为()

A.5W

B.3W

C.2W

D.1W

考点:通信工程师无线通信无线通信题库
题型:单项选择题

用适当的词或短语完成下面两篇短文。使文章意思连贯,语句通顺。

                                                                    A

     Jamie was a boy. He didn't have a hobby. After school, he didn't 1.            in any games with his

friends. He just 2.            at home and 3.            a lot of television. No hobby was not a good way for

a young boy to 4.            up. So one day his grandpa knew it and came to his home. He taught him

how to fish. Jamie was very happy and had a lot of fun doing this. From the story we know hobby is

a great joy. 

                                                                   B

     Boys and girls, the winter holiday is 5           . By 6           , what plans have you 7.            for it?

8.            your hobbies? Let's do the things we like to do. Come on, boys and girls. I'm very sure you'll

enjoy 9           . But remember to bring your schoolworks to your teacher before you 10.            to

school.

题型:单项选择题

以下语句的输出结果是______。Print Format$("123.58","#,###.00")

A.123.58

B.123.00

C.123.58

D.0,123.58

题型:单项选择题

县级规划土地利用总体规划的主要任务有( )。

A.将各类用地指标、规模和布局等落到实处

B.组织划分土地利用区

C.落实能源、交通、水利等重点建设项目规模和布局

D.提出实施规划政策措施

E.协调各部门用地,统筹安排各类用地

题型:单项选择题

气缸镗削的方法按镗削的气缸中心线与气缸原中心线是否重合,分为()。

A.缩小镗法

B.扩大镗法

C.不变镗法

D.同心镗法

E.不同心镗法

题型:单项选择题

鱼类红血球和白血球的数量在同一种类中是比较稳定的,不会因内外因子的变化而发生变动。

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