【简答题】Continual: The word describes separate actions which are repeated over a period of time. Continuous: The word indicated that an action carries on without stopping or interruption. 2. Principal: The wo...
【单选题】A _____ is everything, both favorable and unfavorable, that a person receives in an exchange. It can be tangible, intangible, a service, an idea, or a combination of these things.