A. logistics Center B. logistics enterprise C. logistics management D. logistics information
A. 树干及枝条上产生溃疡型病斑 B. 树体负载量过高是发病的关键 C. 受害果实常以皮孔为中心形成渍状斑点 D. 病部常有黄褐色汁液流出,有酒糟味