Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
Thursday, September 22, 2022
问题:猫科动物均易感染猫细小病毒,其中最易感染的是( )。...
Wednesday, September 14, 2022
Wednesday, September 21, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题生态系统内形成的生态平衡,是何种性质的平衡( )。A 自然的、动态的相对平衡B 封闭的绝对平衡C 间断性平衡D 波动式平衡E 永恒的开放式平衡...
Friday, August 18, 2023
Friday, September 16, 2022
问题:单选题在自然界中,兔黏液瘤病的主要传播途径是( )。A 经消化道B 经呼吸道C 经吸血昆虫D 经血液E 经皮肤、黏膜...
Monday, June 19, 2023
问题:黑龙江省某地饲养的放牧马匹,3月中旬开始陆续发病,病马体温稍升高,精神不振,食欲减退,随后体温逐渐升高到39.5~41....
Thursday, September 22, 2022
Wednesday, September 21, 2022
Friday, September 16, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
问题:临床上体温正常,喘气,剖解肺有对称性虾肉样病变的是()...
Thursday, September 22, 2022
Thursday, September 22, 2022