关于RC5加密算法的描述中,正确的是( )。A.分组长度固定 B.密钥长度固定 C

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问题:

关于RC5加密算法的描述中,正确的是( )。

A.分组长度固定

B.密钥长度固定

C.分组和密钥长度都固定

D.分组和密钥长度都可变

考点:计算机等级考试网络技术三级网络技术笔试
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简答题(任选一题,100字左右)(5分)

(1)请简述香菱学诗的主要情节。

(2)简述“关云长义释曹操”的故事。

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患者女,52岁,离异9年,2008年5月入院。2007年上半年与一个比她年轻9岁的单身男性秘密恋爱,并在单位宿舍有同居行为,被其他同事知道后常遭受议论或开玩笑,患者感到压力重重。2007年11月患者突然出现耳闻人语,常听到同事议论、指责和谩骂自己的声音,并认为遭到同事跟踪、监视,看到同事在一起就认为是在对她指指点点。患者为此感到情绪低落,什么事都不想做,不想说话,不愿见人,终日卧床不起,觉得脑子反应迟钝,食欲减退,体重明显减轻,周身不适。自感活着没有意思,坚持认为是自己做错了事情才招致他人非议。11月16日在门诊诊断为“分裂样精神障碍”,予奥氮平5~10mg/d治疗无效而入院。

该患者的核心症状是()

A.言语性幻听

B.情感低落

C.被害妄想

D.精神运动性迟滞

E.躯体症状

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中组发〔2008〕10号文件关于加强和改进离退休干部党支部建设提出的“三个有利于”原则是什么?

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I’d like to talk about (1) in England and Wales, and in England and Wales there are (2) of council. For instance, if I could take the example of Oxfordshire, there is (3) where they are responsible for education, (4) , structure planning, highways, (5) , and so on. And there are (6) district councils, again in Oxfordshire, and they are (7) , in particular council housing, for local plans, for (8) , environment health, and they’re also responsible for (9) , and in Oxford, for instance, they are building an ice-rink (10) of the city.
If we could (11) the question of education, I think this would (12) of local government in the (13) . First of all, there is a minister at (14) level. He is the (15) for Education and he’s responsible for running a (16) education system in the (17) . But (18) there is a lot of local control. So the local councils, (19) such as Oxfordshire County Council, actually run the schools and colleges in their (20) .

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外伤性关节痛的特点不正确的是

A.外伤后出现关节疼痛

B.常有关节肿胀或功能障碍

C.药物及物理治疗后缓解

D.以上都不是

E.常于活动过度、负重及气候寒冷等刺激而加重

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