贵重茅台:19PB;64PE,股息率0.75%美团-W :20PB;240PE,股息率几乎为0%中国银行:0.34PB;4.1PE;股息率8%中国中铁:0.32PB;3.1PE;股息率5%中国神华:0.68PB;6.5PE;股息率10%问:哪一组翻倍更容易,哪一组腰斩更容易?