用“first intermediate host”造句大全,first intermediate host造句
Twospeciesofsnails,namely,TriculafujiansisandSemisulcospiralibertinawerefound,butonlytheformerwasthefirstintermediatehost.Theinfectionrateofsnailswas0.7%(4/569).Theresultsconfirmthefirstintermediateho...