问题
单项选择题
该二叉树对应的树林包括几棵树
A．1
B．2
C．3
D．4
答案
参考答案：A
解析： 本题考核的是树型结构的常用术语，参考2.4.1“树的定义”。 树是一个或多个结点组成的有序集合T，有一个特定的结点称为根。树林是。棵或多棵不相交的树的集合。 图中只有一棵树。对应的树林也只有一棵不相交的树。所以，本题的答案是A。
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该二叉树对应的树林包括几棵树
A．1
B．2
C．3
D．4
参考答案：A
解析： 本题考核的是树型结构的常用术语，参考2.4.1“树的定义”。 树是一个或多个结点组成的有序集合T，有一个特定的结点称为根。树林是。棵或多棵不相交的树的集合。 图中只有一棵树。对应的树林也只有一棵不相交的树。所以，本题的答案是A。
| 阅读理解。 | ||||||||||||||||||||||||||||||
Mascota(吉祥物)for the Olympic Games
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| 1. From the information above, we know the Olympic Games is held every _____ years. | ||||||||||||||||||||||||||||||
| A. 3 B. 4 C. 5 | ||||||||||||||||||||||||||||||
| 2. The mascots for Beijing Olympic Games are 2 more than those for _____ Olympic Games. | ||||||||||||||||||||||||||||||
| A. Sydney B. Los Angeles C. Atlanta | ||||||||||||||||||||||||||||||
| 3. The mascot for the_____Olympic Games was the first Olympic mascot in Olympic history. | ||||||||||||||||||||||||||||||
| A. 1996 Munich B. 1984 Beijing C. 1972 Munich | ||||||||||||||||||||||||||||||
| 4.The 23rd and 26th Olympic Games were held in the same _____. | ||||||||||||||||||||||||||||||
| A. town B. city C. country | ||||||||||||||||||||||||||||||
| 5. Which of the following information is NOT true? | ||||||||||||||||||||||||||||||
| A. The 1996 Olympic Games was held in America. B. The 27th Olympic Games was held in Europe. C. Beijing is getting ready for the 29th Olympic Games. |
