T1-2相关论文
Backround: The English literature contains very few reports on disc herniation at upper thoracic levels. This report pre......
从广西大学农场和南宁市郊12种作物类型田块采集土壤样品,经分离、纯化后,获得66个真菌菌株和67个细菌菌株。用对峙法测定分离到的土......