[问答题,简答题] 何为中度危险性物品?

A2B红细胞抗原性较弱，容易误定为 ["A型","B型","AB型","O型"] 毛细血管充盈试验 Fi0 手术缝线为什么要浸湿后再用? B型血清用A2红细胞去吸附，留下哪种抗体 ["抗A","抗A1","抗A2","抗A3"] 何为中度危险性物品?