【单选题】Despite the failure of his elderly experiments, the scientist continued his efforts in his research.
【单选题】最为经济且最为便利的直观教学手段是( )
【判断题】单纯扩散不能进行逆浓度运输,而主动运送则能进行逆浓度运输。( )
【判断题】桂林三花酒是中国米香型代表的代表,被誉为米酒之王
【简答题】数据库操作中的外连接包括 连接和 连接。
【单选题】最为经济且最为便利的直观教学手段是( )
【单选题】Despite the failure of his early eperiments, the scientist continued his efforts in his research.