记忆的结构
What are two characteristics of RIPv2?（） [" classful routing protocol"," variable-length subnet masks"," broadcast addressing"," manual route summarization"," uses SPF algorithm to compute path"]
（）是宋代设计史上最辉煌的一页 ["丝织业","制瓷业","青铜业","造纸业"]
药箱在列车途中（）负责管理使用。 ["列车长","业务员","红十字救护员","乘警"]
下列何种原料之结缔组织含量最多（）。 ["后腿肉","小里肌肉","背脊肉","腱肉"]
古猿
