土壤动物孔道 soil animal passage
土壤动物孔道 soil animal passage
相关考题：
It can be inferred from the passage that all of the following are ways of producing new strains of influenza viruses EXCEPT______.A. two influenza viruses in the same animal recombiningB. animal viruses recombining with human virusesC. two animal viruses recombining in one animalD. two animal viruses recombining in a human
What’s the best title of this passage?__________ .A. A pig and a cow B. A farm C. The most important animal
名词解释题土壤动物孔道