在一个试验中，汪幸科和他的小组使用两种方法测试沙拉台。

In one experiment, Wansink and his team compared two approaches to salad bars.

和雀巢公司，它们被提及的次数太多了，这位套利者说这一对就象是晚间新闻里有关不安全自助沙拉台的报导一样，每三个月都会蹦出来一次。

HSY and Nestle SA, have been mentioned so often that this arbitrager called the pairing 'like reports of unsafe salad bars on the nightly news - they pop up every three months.