A:One moment, please. I’ll see if there are any for tonight.
B:Sure. Please fill out this form for us.
C:Sorry. I’m afraid we have no one at this time
D:How long are you planning to stay here, sir?
已知双曲线x2a2-y2b2=1a>0,b>0与抛物线y2=8x有一个公共的焦点F,且两曲线的一个交点为P,若|PF|=5,则双曲线的渐近线方程为( )
根据国家中心气象台报道,近年来,我国的一些沿江或沿海城市多次出现大雾天气,致使高速公路关闭,航班停飞,雾属于下列分散系中的( )