A:14.7g
B:16.1g
C:15.5g
D:无法确定
-- I heard that there are a few seats left for tonight's show.
-- Really? I was under the impression ______ they were sold out a long time ago.
明清时期,“苏(州)城花素缎机工业,向分京苏两帮,各有成规,不相搀越。……(技艺)均系世代相传,是以各归主顾,不得紊乱搀夺。”材料表明当时的苏州( )