H14-231_V1.0 Practice Online

HAR (HarmonyOS Ability Resources) is different from HAP (HarmonyOS Ability Package) in that HAR cannot be installed and run on devices independently, and can only be referenced as dependencies of application modules. 

When using EventHandler to implement inter-thread communication, if EventRunner takes out the Runnable task, it will trigger the callback method of EventHandler and the processing method of EventHandler. 

In the distributed terminal scenario, the "correct person" refers to the data accessor and business operator who have passed identity authentication. The "right person" is a prerequisite to ensure that user data is not illegally accessed and user privacy is not leaked. What does HarmonyOS use to implement collaborative authentication? 

In the following scenarios, which ones use the voice broadcast function? 

If a reading app uses the language recognition capability provided by HarmonyOS, the app can automatically read a novel.