I have called the station and they told me the next train for Chongqing _____at 2:30.

A．will leave

B．left

C．has left

D．leaves

啤酒花根系的发育早晚及在土层中的分布情况与定植年限、（）、施肥灌水及耕作制度有关。

A、打药次数

B、间种

C、土壤结构

D、水位高低