题目内容:
The main pathogens that cause mange of cattle and sheep are()
A.Chorioptes
B.Psoroptes
C.Sarcoptes
D.Knemidocoptes
参考答案:
The main pathogens that cause mange of cattle and sheep are()
A.Chorioptes
B.Psoroptes
C.Sarcoptes
D.Knemidocoptes