【单选题】In a single year, the Netherlands can raise 100 tons of beef or produce 1,000 boxes of tulips. In the same growing season, Belgium can raise 50 tons of beef or produce 750 boxes of tulips. In autarky,...
【单选题】In a single growing season, the country of Pastoral can raise 100 tons of beef or produce 1,000 boxes of tulips. In the same growing season, the country of Bucolic can raise 50 tons of beef or produce...