系统解析:推断题。答案出自文章第二段的最后两句“It was all very logical. And yet prohibition of liquor beer, and wine did not work. ”和文章第三段的头两句“Because, law or no law, millions of people still liked to drink alcohol. And they were willing to take risks to get it.”。由此我们可以看出,国会撤销禁酒令是非常明智的。