【单选题】Please analyze the logical fallacy in the following statement: Teachers in capitalist countries are out for all the money they can get.
【判断题】三餐的能量分配应保持合理比例,早餐占30%,午餐占30%、晚餐占40%。
【简答题】设一个关系A具有a1个属性和a2个元组,关系B具有b1个属性和b2个元组,则关系A×B具有________个元组。
【判断题】三餐的能量分配应保持合理比例,早餐占30%,午餐占40%、晚餐占30%。
【单选题】Please analyze the logical fallacy in the following statement: Religion obviously weakens the political strength of country. After all, Rome fell after the introduction of Christianity.
【简答题】设一个关系A具有a1个属性和a2个元组,关系B具有b1个属性和b2个元组,则关系A×B具有________个属性。
【单选题】Please analyze the logical fallacy in the following statement: Watching television is a waste of time.
【单选题】一天三餐总能量比较合理的分配比例是:早、中、晚餐各占( )。