题目

Fruit and vegetables can be grown nowadays _____. A．in what used to be dry fields                     B．in which there’s enough water C．at where there is enough water          D．where used to be dry fields. 答案：A影响西欧乳畜业形成的主要社会经济因素是    （ ）A．地形B．气候C．交通D．市场