Which of the following features does HarmonyOS smart home devices include?
When a developer calls Particle Ability (PA) with FA (Feature Ability), callAbility returns the error "Internal ability not register.", what key steps does the developer need to check?
A developer designed an application, when the user receives a notification, if the user clicks on the notification, it will jump to a new page, and if the notification is not clicked, the new page will not be triggered.
When a developer develops an online education application, which of the following components can be combined into a single-choice question if the studentAnswer:ing interface has multiple choice questions and multiple choice questions?