A.生長發(fā)育快B.適應(yīng)能力差C.可塑性強(qiáng)D.消化能力強(qiáng)
A.定時(shí)消毒B.定時(shí)觀察C.定時(shí)保溫D.定時(shí)打掃
A.瘤胃B.網(wǎng)胃C.瓣胃D.皺胃