2010年10月26日长江三峡工程蓄水首次达到最终设计175m水位，三峡工程是世界上最大的水电站，如果从环境保护的视角看，三峡工程有助于控制：①温室效应；②臭氧空洞；③酸雨的形成；④白色污染；⑤水土流失；⑥农药、化肥污染。其中合理的目标是 [ ]

A．①③⑤

B．②④⑥

C．③④⑤

D．①②④

— Why do you drink so much tea? 

— Well, _____ it doesn't keep me awake in the nights.[ ]

A. although

B. as soon as

C. as long as

D. while