潍坊市农业发达的社会经济条件是( )
A:地形以平原为主
B:雨热同期的暖温带季风气候
C:良好的基础设施和领先全国的技术优势
D:耕地后备资源丰富
—I'm trying to keep my cool because we've been together ________ three years.