The second group looked at states that did not share a border with Maryland, in order to avoid bias from people buying liquor in nearby states where the taxes were lower.
第二组研究了与马里兰州不接壤的州，以避免因人们从附近税收较低的州购买酒类而产生的偏倚。
The second group looked at states that did not share a border with Maryland, in order to avoid bias from people buying liquor in nearby states where the taxes were lower.
第二组研究了与马里兰州不接壤的州，以避免因人们从附近税收较低的州购买酒类而产生的偏倚。
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