由双曲线的标准方程 x25-y29=1可得，a=5，b=3，故虚轴的长为：2 b=6，
故答案为：6．
_____, a small advertisement held my attention, which read "Easy job. Good wages. No experience
necessary." [ ]
A. Looking through the newspaper
B. While I was looking through the newspaper
C. To look through the newspaper
D. Looked through the newspaper
什么是“连中三元”和“三鼎甲”
