下列分异规律以水分为基础的是 (    )

A．在同一海拔高度上珠峰南北坡植被不同

B．珠峰由山麓到山顶自然带有明显的更替

C．坐火车看到从连云港到乌鲁术齐植被明显变化

D．沿京九铁路坐火车看到从北京到九龙植被明显的变化

She didn’t come back to her hometown for five years and ______, she had got married and had a couple of kids.

A．to be honest

B．above all

C．on the other hand

D．in the meantime