数字签名的功能不包括 (7) 。 A.防止发送方和接收方的抵赖行为 B.发送方身份

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问题:

数字签名的功能不包括 (7)

A.防止发送方和接收方的抵赖行为
B.发送方身份确认
C.接收方身份确认
D.保证数据的完整性

考点:计算机软件水平考试高级系统分析师高级系统分析师上午试题
题型:单项选择题

_小题1:__ One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

The first thing you need to come up with is an idea for your club.__小题2:_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

Next you need some friends to be in your club with you._小题3:_ All you need is three or four other people who are interested in the same thing as you.

__小题4:__You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them.__小题5:_ Why not leave some space for a photo of yourself? That will make the membership card really look like it.

So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A. That’s easy.

B. Enjoy your own club!

C. Invite a designer to join you.

D. What are you interest in?E.  Some vacation is just around the corner.

F.  Then you need to pick a name for your club.

G.  Use a bright thick pen to make a special design.

题型:单项选择题

When should we do to _____ these posters?   [ ]

A. hang up                        

B. pick up  

C. get up                          

D. put up

题型:单项选择题

使用单位应在建筑起重机械活动范围内设置明显的(),对集中作业区做好安全防护。

A.应急救援预案

B.标志牌

C.使用说明书

D.安全警示标志

题型:单项选择题

纳税检查的主体是( )。

A.税务机关
B.财政机关
C.会计师事务所
D.审计部门

题型:单项选择题

关于薄壁杆的受力特点,下列哪一种说法是错误的?()。

A.薄壁杆可以承受或传递沿杆轴线方向的分布力

B.薄壁杆可以承受或传递沿杆轴线方向的集中力

C.薄壁杆可以承受或传递垂直杆轴线方向的分布力或集中力

D.杆不能承受弯矩,或只能承受很小的弯矩

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