你可以询问雇员他她是否饮酒或者滥用药物。
You can ask an employee if she has been drinking or abusing drugs.
研究人员询问参与者是否饮酒，以及上月他们至少多少天喝一次酒。
They asked participants about whether they drank alcohol, and on how many days in the last month they'd had at least one drink.
另一个项目为“24/7戒毒”。 该项目对南达科他州屡次醉驾人员采用同样的强制措施，每天检测两次，看其是否饮酒。
Another scheme, Sobriety 24/7, takes the same brusque approach with repeat drunk-drivers in South Dakota, testing them twice a day to see if they have had a drink.
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