耿爱民怀抱他繁育的耐寒小麦种,喜悦之情溢于言表。With hardy wheat in his arms, Geng Aimin is brimming with joy.
今年68岁的耿爱民,是滨州市农业科学院退休的小麦栽培与育种专家,已从事农业科研45载。201(试读)...