【单选题】To render the ______ liable,the shipowners must show that the proximate cause of the detention or expense was trading to a river with a bar or to a port with a bar.
【单选题】The studies show that the driver who has consumed an amount of alcohol within the limit is______ likely to have an automobile accident than the driver who does not take any alcohol.
【单选题】Surveys show that the majority of passengers are pleased that an agreement has been reached to forbid smoking on______flights within the continental United States.