论文部分内容阅读
In the evening of June 20th, we arrived in Yantai and Zhai Guifu, administrator of Yantai Forestry Administra- tion gave us a warm-hearted reception.
In the evening of June 20th, we arrived in Yantai and Zhai Guifu, administrator of Yantai Forestry Administra tion gave us a warm-hearted reception.