【判断题】Public speaking skills cannot be learned by individuals.
【单选题】甘肃保存有国内最早墨书纪年题记的( )。
【单选题】保存有国内最早墨书纪年题记的石窟是( )。
【简答题】To protect the ecological environment is not just the government’s responsibility. Individuals cannot _____ their responsibility.
【单选题】保存有国内最早墨书纪年题记的石窟是()。