二、 試舉一例說明相互異位異質體(reciprocal translocation heterozygote)之子代會呈現半不孕性(semisterility)之原因。(25分)

三、 作物群體內和群體間的輪迴選拔方法各有哪些？其特點是什麼？(25分)

四、 舉例說明一般複因子試驗(factorial experiment)與摺疊設計(hierarchical design)之差別？又何謂摺疊複因子試驗(hierarchical factorial experiment)？(25分)

1. Assume there are n objects and you need to store the distances among them. Let a one-dimensional array be used to store distances. Assume the objects are numbered from 0 to n-1, and the distance between an object to itself is not stored. In other words, the distance between object 1 and object 0 is stored at position 0 in the one-dimensional array, and the distance between object 2 and object 0 is stored at position 1. For example, the following matrix shows the storage for the distances among 5 objects. What is the position for the distance between object 100 and object 10? (10%)

2. The node of a tree is declared as:typedef struct *treePointer;typedef struct node {int data;treePointer left, right;};Please use any programming language to write a level-order traversal function for a binary tree. (15%)

3. When inserting a data object to a hash table, we use a hash function top map a key to a bucket in the hash table. Collision occurs when different keys are assigned to a same bucket. Please briefly describe two methods to handle collision. (15%)

4. Please compare a linked list and an array in terms of time and space. (10%)

5. The purpose of Kruskal’s algorithm is to build a minimum cost spanning tree. Give the minimum cost spanning tree of the graph shown below by using Kruskal’s algorithm. (20%)

  6. Write the prefix and postfix form of the following expressions: (15%)

7. We want to create a linked list of integers. The node structure is defined in the following:We want to set the data field of the first node to 50 and that of the second to 100. Write the function listPointer createTwo() in C/C++ to create a two-node linked list. (15%)

一、人工造林時，使用鄉土樹種或自國外引進的樹種，各有何利弊？請以實際發生的例子說明你的論述及觀點。(25%)

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