Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.Fact: Over 95 percent of people who have asthma also suffer from hay fever.
If the information given as facts above is true, which of the following must also be true?
【选项】The number of people who have both of these ailments is greater than the number of people who have only one of them.
If the information given as facts above is true, which of the following must also be true?
【选项】The number of people who have both of these ailments is greater than the number of people who have only one of them.
