The age of a tree can be determined accurately by counting the number of tree rings it has _____.
举一反三
- What can the tree’s rings tell us（） A: The age of the tree. B: The changing activities of sun. C: A lot more. D: All the above.
- We can have a decision tree that has more than two decision per node.
- Given a tree, you can find the only binary tree corresponding to it A: 正确 B: 错误
- A complete binary tree is a tree where________________.( ) A: each node has exactly one or two children B: each node has exactly zero or two children C: each node has exactly two children D: every level of the tree is completely filled except the last level
- Assume that the table "employee" has fields such as number, name, age, title, and nationality. The field that can be used as key is(). A: number B: name C: age D: title