閱讀理解Onceaveryrichmanandhissoncollectedvaluablepaintings...
問題詳情：閱讀理解OnceaveryrichmanandhissoncollectedvaluablepaintingsbyfamousartistslikePicasso,VanGoghandMonet.Later,thesonlefttojointhearmy.Afterafewweeks,theoldmanreceivedalettersayinghissonhaddiedwh...