[填空题] “客有为齐王画者，齐王问曰：‘画孰最难者？’曰：‘犬马最难。’‘孰易者？’曰：‘鬼魅最易’。”此段话出自（），这是中国美术理论发展过程中最早提出的关于（）的问题。

词 （）现车安装时没有方向要求。 ["缓解阀","金属软管","止回阀","远芯集尘器"] Although the Wars of the Roses were fought intermittently for（）years,ordinary people were little affected and went about their business as usual. ["20","30","40","50"] 中学美术教学任务的主要内容反映在初中、高中的《大纲》中，是以“教学要求”或“（）”的形式来体现的。 ["教学目的和要求","教学内容和要求","教学任务和要求","教学内容和任务"] 合成词 “客有为齐王画者，齐王问曰：‘画孰最难者？’曰：‘犬马最难。’‘孰易者？’曰：‘鬼魅最易’。”此段话出自（），这是中国美术理论发展过程中最早提出的关于（）的问题。