【简答题】物种分布区 species distribution range
【简答题】31 biodiversity 生物多样性 species 物种 mixture 混合 identify 辨认 distribution 分布
【简答题】什么是物种群集度(species assemblages)?
【多选题】下列关于生物种(Biological species)概念的正确观点是:
【单选题】My friends love to_______with his friends and talk. They are not veryactive people.
【判断题】(请注意介词)Then everyone in the carriage began searching the ticket,which was eventually found under a seat several rows from its owner.
【简答题】什么是物种均匀度(species evenness)?
【判断题】物种数目(species richness)高的群落,其物种多样性也一定高(species diversity)。
【简答题】面向连接交换方式有( ) 、虚电路和电路交换。