把一棵树转换为二叉树后,这棵二叉树的形态是( )。
A. 唯一的
B. 有
C. 有多种,但根节点都没有左孩子
D. 有多种,但根节点都没有左孩子
查看答案
His attack on the manager led to his instant ______ . (dismiss)
In a master’s thesis or doctoral dissertation, there is usually a separate part called “______ ” at the beginning or end, expressing the author’s gratitude to all the people who have helped him or her during the writing process. (acknowledge)
In this TV program, we interviewed some of the chief ______ in World War II. (combat)
If you say or write something that is self-______ , you make two statements which cannot both be true. (contradiction)