_____all kinds of knowledge ,he was admitted to a key university.

A．Equipped with

B．Having equipped for

C．Armed for

D．Having armed with

发达国家出现逆城市化现象的原因是

    ①人们对环境质量的要求提高；②乡村和小城镇的基础设施逐步完善

    ③交通运输的通达性不断增强；④乡村的人均收入高于城市

    ⑤城市的地价昂贵，房租高　 [ ]

A、①②③④

B、②③④⑤

C、①②③⑤

D、①③④⑤