未知题型 Richard Axel和LindaB.Buck发现了气味分子受体和嗅觉系统的组成，因而获得了______________年诺贝尔医学和生理学奖。

未知题型 火灾防治技术的发展趋势是：()。

未知题型 听力原文：W: I can't believe you got tickets for tonight's game. I've been trying for days.M: I must have just been in the right place at the right time.Q: What does the man mean?(19)A．He was lucky to get the tickets.B．He really enjoyed the game.C．He hopes to get a good seat at the game.D．He's surprised the woman wants to go with him.