问题 单项选择题

在电子商务活动中,消费者与银行之间的资金转移通常要用到证书。证书的发放单位一般是_______。

A.政府部门

B.银行

C.因特网服务提供者

D.安全认证中心

答案

参考答案:D

解析:[知识点] 电子商务基本概念与系统结构[评析] 安全是电子商务的命脉。电子商务的安全是通过加密手段来达到的。在电于商务系统中,CA安全认证中心负责所有实体证书的签名和分发。

阅读理解

阅读理解(共13  26分)

阅读下面几段文字,理解文章大意,并从A 、B、 C、 D 四个选项中选出最佳选项。

A

People need to relax and enjoy themselves.  One way they can have a good time is to watch a baseball game or another sports event.  Even thousands of years ago, groups of people gathered to watch skilled athletes.

Over 2000 years ago in Greece, certain days in the year were festival days.  These were holidays when people stopped work and enjoyed themselves.  They liked to watch athletes take part in races and other games of skill.

The most important festival was held every four years at the town of Olympia.  It was held in honor of the Greek god Zeus (Zus).  For five days, athletes from all parts of the Greek world took part in the Olympic Games.  At the Olympic Games, people could watch them box, run, jump and so on.  There was a relay race between two reams of men in which a lighted torch was passed from runner to runner.  The Olympic Games were thought to be so important that cities which were at war with one another had to stop fighting.  People were allowed to travel to the games safely.  Thousands of people came to Olympia from cities in Greece and from her colonies (殖民地)in Africa, Asia and Italy.  They met as friends to cheer their favorite athletes and to enjoy themselves.

56.What happened in Greece over 2000 years ago?

A.  People stopped work and enjoyed themselves.

B  The cities there were often against one another.

C  People watched baseball games.

D  People didn’t go to any games at all.

57.What were those countries in Africa?

A.  Friends.    B. Enemies.   C.  Colonies.     . D  Other cities.

58.What did people do at the games?

A.  They fought.

B They just talked to friends.

C  They cheered for good athletes.

D  They tried to find friends.

59.Greek cities then were fighting so they ____

A.  were weak.

B  were strong

C  couldn’t go to other cities freely.

D  could see each other.

60.The best title for the story is “ _____” .

A.  Greece at War

B.  Together for the Games

C.  Stop Fighting

D.  Sport

多项选择题