【单选题】Topic 31 Session 1 4-5-A Choose which word or phrase best fits each blank. The _______________ is a conceptual model that focuses on icons and screen layouts.
【单选题】Topic 31 Session 1 4-1-B Choose which word or phrase best fits each blank. The _______________ concerns the functions the systems will perform for users.
【单选题】Topic 31 Session 1 4-5-A Choose which word or phrase best fits each blank. The ____________ describes the attributes of a system that are relevant to the user.