The proportion that the mollusk density went down was 59.6% from 1980 to 2003, and the proportion that the aquatic insect density went down was 95.9% from 1981 to 2003.

 
  • 软体动物较 1980 年下降了 59.;6%25,水生昆虫较 1981 年下降了 95
今日热词
目录 附录 查词历史