IDM是无线机柜内分配内部多少伏直流电到各个单元的一块面板() A.24V B.-2

题型:单项选择题

问题:

IDM是无线机柜内分配内部多少伏直流电到各个单元的一块面板()

A.24V

B.-24V

C.48V

D.-48V

考点:无线电调试工考试无线电调试工综合知识无线电调试工综合知识题库
题型:单项选择题
△ABC中,∠C=90°,AC=
5
13
AB,则sinA=______;tanB=______.
题型:单项选择题

一个小长方体方块的长、宽、高分别为3cm、2cm和1cm,要用这种小长方体方块摆成长、宽、高分别为3m、2m和2m的大长方体,需要(     )块(用科学记数法表示)。

题型:单项选择题

在CP40的一块CPU板中包含了以下哪些单元.()

A、IPU

B、SPU

C、MAU

D、PS/RS/DS

题型:单项选择题

下列哪个类是由编译器自动生成对象的特殊类,是用于类操作

A.System类

B.Class类

C.Thread类

D.Object类

题型:单项选择题

阅读理解

     Over the last 25 years, British society has changed a great deal-or at least many parts of it

have.  _ .

     Ideas about social class-whether a person is "workingclass" or "middleclass" -are one area

in which changes have been extremely slow.

     In the past, the workingclass tended to be paid less than middleclass people. The typical

working man would collect his wages on Friday evening and then, it was widely believed, having

given his wife her "housekeeping", would go out and squander the rest on beer and betting.

     The old style of what a middleclass man did with his money was perhaps nearer the truth. He

was and still is inclined to take a longerterm view. Not only did he regard buying a house as a

most important thing, but he also considered the education of his children as extremely important. 

 __2_. Only in very few cases did workers have the opportunity (or the education and training) to

make such longterm plans.

     _3_. In a large number of cases factory workers earn as much as their middleclass supervisors

(管理者). Social security and laws to improve century, have made it less necessary than before to

worry about "tomorrow". Workingclass people seem slowly to be losing the feeling of inferiority(自

卑感). In fact there has been a growing tendency in the past few years for the middleclasses to feel

slightly ashamed of their position.

     _4_.They generally tend to share very similar tastes in music and clothes, they spend their money

in having a good time, and save for holidays or longerterm plans when necessary. There seems to

be much less difference than in precious generations.  _5_. As long as this gap exists, there will always

be a possibility that new conflicts and jealousies will emerge, or rather that the old conflicts will

reappear, but between different groups.

A. Nowadays, a great deal has changed

B. Both of these provided him and his family with security

C. As a result, differences in lifestyles and attitudes came into existence

D. However, we still have a wide gap between the wellpaid and the lowpaid

E. In recent years, the workingclass people have begun to design longterm plans

F. In some ways, however, very little has changed, particularly where attitudes are concerned

G. The changes in both lifestyles and attitudes are probably most easily seen among younger people

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