单选题：Let us convert a general tree T into a binary tree BT. Suppose
Let us convert a general tree T into a binary tree BT. Suppose that there are $$n_0$$ leaf nodes in T and $$m_0$$ leaf nodes in BT. Which of the following relationship between $$n_0$$ and $$m_0$$ is true?
A.$$n_0\ge m_0$$
B.$$n_0\le m_0$$
C.$$n_0 = m_0$$
D.cannot be determined
答案：A
A.$$n_0\ge m_0$$
B.$$n_0\le m_0$$
C.$$n_0 = m_0$$
D.cannot be determined
答案：A
