线上bug fix：切换题目时，音频组件未更新

src/features/OnlineExam/Examing/QuestionBody.vue

@@ -64,7 +64,7 @@ function getAudioPlayedTimes(name: string) {
 
     <div
       v-for="(item, index) in questionSegements.audios"
-      :key="index"
+      :key="item.src"
       style="
         position: relative;
         font-size: 18px;