题型:问答题 简答题 — I didn’t go to class last night because my car broke down.— You mine. I wasn’t using it.A.should borrowB.might have borrowedC.could have borrowedD.must have borrowed 查看答案
题型:问答题 简答题 与白喉棒状杆菌性状无关的是()A.豚鼠结膜试验阳性B.在含血清,鸡蛋的培养基上生长良好C.分解葡萄糖,麦芽糖及糊精产酸不产气D.革兰阳性有异染颗粒的棒状杆菌E.有毒株带β-噬菌体 查看答案