【单选题】Despite the failure of his elderly experiments, the scientist continued his efforts in his research.
【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
【单选题】Despite the failure of his early 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( )
【单选题】Despite the failure of his early eperiments, the scientist continued his efforts in his research.