‌The main symptoms of cattle and sheep mange are（ ）​ A: Crust B: Hair loss C: Thickened skin D: Edema

The main symptoms of cattle and sheep mange are（ ） A: Crust B: Hair loss C: Thickened skin D: Edema

Which<br/>is wrong about the structure of testis? () A: Thetunica<br/>albuginea is thickened on the posterior<br/>surface of<br/>testis to form mediastinum B: The<br/>fibrous septa from mediastinum<br/>penetrates radially the testis, dividing it into pyramidal lobules C: Each<br/>lobule is occupied by 1-4 seminiferous tubules D: Theseminiferous<br/>tubules go into mediastinum testis to form rete testis E: The tubulus<br/>rectus go into mediastinum testis to form rete testis