SHA是一种常用的摘要算法,它产生的消息摘要长度是( )。A.64位 B.128位

题型:单项选择题

问题:

SHA是一种常用的摘要算法,它产生的消息摘要长度是( )。

A.64位

B.128位

C.160位

D.256位

考点:计算机等级考试网络技术三级网络技术笔试
题型:单项选择题

阅读短文,选择最佳选项。

      Many British people like to go bird-watching in their free time. That's why there are many English sayings

about birds. Read the following to learn about them.

      He eats like a bird.

      This doesn't mean he eats worms and seeds! A mother might be worried if her son or daughter eats like a

bird. It means that the boy or girl eats very little and is very fussy (挑剔) about food.

      Birds of a feather flock (群集) together.

      You never see a peacock with a crow (孔雀和乌鸦在一起), or a goose with an eagle. These birds are very

different. They like to be with other birds of the same kind. People are like this, too. We always make friends

with people who have things in common with us.

      His chickens have come home to roost (栖息).

      This means that he has problems now because of bad things he did before. If you play computer games and

sleep all afternoon when you should be studying for your exams, you will fail your exam. Then your friends can

say that your chickens have come home to roost.

1. How many English sayings have you learned in the text?[ ]

A. One.

B. Two.

C. Three.

D. Four.

2. From the text, we know that people with the same idea always             .[ ]

A. have things in common

B. become good friends

C. go bird-watching

D. keep different ways

3. Which of the following can best explain the saying "your chickens have come home to roost"? [ ]

A. You are so tired after studying that you need a rest.

B. You are in trouble because you did bad things before.

C. You will fail your exams because they are difficult.

D. You should try your best to study hard from now on.

题型:单项选择题

文档的编制在网络项目开发工作中占有突出的地位。下列有关网络工程文档的叙述中,不正确的是 ( ) 。

A.网络工程文档不能作为检查项目设计进度和设计质量的依据

B.网络工程文档是设计人员在一定阶段的工作成果和结束标识

C.网络工程文档的编制有助于提高设计效率

D.按照规范要求生成一套文档的过程,就是按照网络分析与设计规范完成网络项目分析与设计的过程

题型:单项选择题

患儿单眼上睑下垂伴有复视,朝轻暮重,最可能的诊断是()

A.先天性上睑下垂

B.麻痹性斜视

C.动眼神经麻痹

D.重症肌无力

E.都有可能

题型:单项选择题

Addison病最具特征性的表现是()

A.皮肤色素变淡

B.胃肠道症状

C.代谢障碍

D.全身皮肤色素加深

E.神经、精神系统症状

题型:单项选择题

街道办事处是( )

A.派出机关
B.分支机关
C.合署办公机关
D.地方行政机关

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