二叉排序树上的删除,相当于删去 有序序列上的一个记录,应保证删 除结点后,二叉排序树的特性不变。 删除结点可有三种情况: 1.若被删除结点*p为叶子结点,即其p和 P均为空树。由于叶子结点的存在若不 破坏整株树的结构,则只需修改其父结 点的指针即可。 2.若*p结点只有左子树p或只有右子树PR 此时只要令p或p直接成为其父结点*f

一、用编程的方法完成方差分析分析结果 1、 Source:变异来源 2、DF:自由度 3, ANOVA SS(Sum of Square) 离均差平方和 4、 Mean Square:均方 5、 Value:检验统计量F值 6、Pr>F:F值所对应的P值 The Power to Know

The Law of Total Probability is handy tool for breaking down the computation of a prob- ability into distinct cases. More precisely, suppose we are interested in the probability of an event E: Pr(). Suppose also that the random experiment can evolve in two different ways; that is, two different cases X and X are possible. Suppose also that it is easy to find the probability of each

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present discussion it is useful to distinguish among four crime different general approaches(three of which seek to reduce principally through the operations of the law enforcement criminal motivation), which are distinguished by their own and criminal justice systems. These \formal\ systems of set of objectives and techniques. These four approaches to rime pr enti control serve the dual purpose of deterring law-breaking crime prevention are:

PR aims at winning public confidence and goodwill, giving a business or other ganization information, telling the pubic about a companys activities, plans or ideas and being on good terms with the public. It requires thoughtfulness about others beliefs

第7章金属羰基和π酸配体化合物 1.d区过渡金属与羰基:CO和类羰 基:PR3(膦),:PX3,:AsR3(),NO,:CNR(异腈) 2.d区过渡金属为低价态(零价或负价) hsA中属于SA

57~71号15个元素位于周期表的,第六周期, IIIB族,是内过渡元素,f亚层电子0~14个间 ,价电子4f0~145d0~16s2,称为镧系元素;有 La、Ce、Pr、Nd、Pm、Sm、Eu、Gd、Tb、Dy 、Ho、Er、Tm、yb、lu

12.1统筹图 统筹方法是利用数学方法和网络图来研究、分析工程项目的合理组织、协调管理的一种科学管 理方法 这一方法于20世纪50年代产生于美国.956年,美国杜邦公司为协调公司不同业务部门的系 统规划,利用网络方法制订了第一套网络计划,称为关键路线法(CPM, Critical Path Method).1958年,美国海军武器局在制订“北极星”导弹研制计划时,同样利用了网络方法,但 更注重于对各项任务安排的评价和审查,称为计划评审技术(pr, Program Evaluation and Review Technique)