在竖直地面上以速度2v₀竖直上抛一物体A后，又以初速度v₀从同一地点竖直上抛另一物体B，若要使物体在空中相遇，则两物抛出的时间间隔Δt的取值不可能为（不计空气阻力）

—The weather isn't good enough for an outing，is it?

—Not at all. We can't have ________ at this time of the year.

A．a worse day

B．a nicer day

C．such bad a day

D．so fine a day