题目内容

递归算法的执行过程一般来说可先后分成 (57) 和 (58) 两个阶段。（57）处填（）。

A. 试探
B. 递推
C. 枚举
D. 分析

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Most computer systems are (71) to two different groups of attacks：insider attacks and outsider attacks．A system that is known to be (72) to an outsider attack by preventing (73) from outside can still be vulnerable to the insider attacks accomplished by abusive usage of (74) users．Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment,but also helps to prevent future attacks．These attacks are usually (75) by tools referred to as Intrusion Detection Systems．（74）处填（）。

A. power
B. rights
C. authorized
D. common

国家垄断资本主义有哪些具体形式

清热解毒，利水消肿

A. 青黛
B. 蚤休
C. 穿心莲
D. 白鲜皮
E. 半边莲

OMT定义了三种模型来描述系统。 (9) 可以用状态图来表示， (10) 可以用数据流图来表示， (11) 是上述两种模型提供了基本的框架。（9）处填（）。

A. 对象模型
B. 功能模型
C. 动态模型
D. 类模型